> ## Content Index > Fetch the complete content index at: https://ovejanegrablog.com/llms.txt > Use this file to discover other available public pages before exploring further. # Triangulation in Families: When a Parent Plays the Siblings Against Each Other - URL: https://ovejanegrablog.com/en/triangulation-in-families/ - Published: 2026-09-28T06:26:29.000Z - Updated: 2026-09-28T06:26:29.000Z - Description: Messages passed through siblings, constant comparisons, strategic gossip. What family triangulation is, what it leaves behind between siblings, and how to step out of the triangle without a war. - Author: Moderador La Oveja Negra - Tags: #en, Narcissism "Your sister gets me." "At least your brother never gives me trouble." "Don't tell your dad, but..." If you grew up hearing lines like these, you may have lived through something psychologists call **triangulation**: when tension between two people isn't dealt with directly but gets routed through a third. In many families, that third person is a child. And sometimes it's the siblings who end up caught in the middle. This article explains what triangulation is, what it looks like day to day, what it can leave behind between siblings, and what you can do now, as an adult, to step out of the triangle without going to war with everyone. **A quick note:** on this blog we sometimes talk about "parents with narcissistic traits." That's a popular phrase, not a diagnosis. Only a qualified mental health professional can diagnose a personality disorder. Triangulation isn't tied to any single diagnosis, either: it can show up in any family under enough stress. The goal here isn't to label anyone. It's to understand a pattern. ## What triangulation is Psychiatrist Murray Bowen, one of the pioneers of family therapy, noticed that a two-person relationship can only tolerate so much tension before it pulls in a third person. According to the Bowen Center, the triangle is the smallest stable emotional unit in a family: when two people get tense, one of them reaches for a third to relieve the pressure. That, by itself, is very human. We've all vented to a friend. The trouble starts when the pattern becomes rigid and the third person is a child with no way out. A study published in the *Journal of Family Psychology* describes triangulation as a child being drawn into conflict between parents, and found that triangulated teens tend to show more emotional and behavioral struggles, even while parents may see the family as "fine." ## What it looks like when a parent uses the siblings Triangulation doesn't only happen between Mom, Dad and one child. In families with narcissistic traits, it's common for one parent to play the siblings off each other. Some familiar versions: - **The messenger:** "Tell your brother that if he doesn't show up Sunday, he knows what'll happen." A parent doesn't talk to one child directly but sends messages through another. - **Constant comparison:** "Your sister owned a house by your age." The comparison isn't meant to motivate. It sets one child against another. - **Strategic gossip:** "You won't believe what your brother said about you." Half-truths, or made-up stories, that plant distrust. - **The confidant:** one child becomes a parent's emotional sounding board, hearing complaints about the other parent or the other kids that were never theirs to carry. - **The alliance against the "bad one":** a team forms, the parent and the favored child, against the child who questions things. This is the foundation of the [golden child and scapegoat](https://ovejanegrablog.com/en/golden-child-scapegoat/) roles. - **Secrets:** "Don't let anyone know about this." Each child knows one piece, nobody has the full story, and everyone depends on the parent to know "the truth." ## Why it happens It isn't always a conscious plan. Often it's a learned way of managing anxiety: if talking directly feels scary, you talk through someone else. In other families there is a need for control: if the siblings don't talk to each other, the parent stays at the center of all the information and all the alliances. Understanding why it happens doesn't mean excusing it. It means you can stop taking it personally between you and your siblings. In many cases, you were never enemies. You were pieces on a board none of you chose. ## What it can leave behind between siblings - **Siblings who feel like strangers.** You love each other but don't really know each other. Everything you learned about one another went through a parent's filter first. - **Rivalry that doesn't make sense.** Resentment toward the "favorite," without realizing they were carrying their own weight too. - **Guilt and split loyalty.** Feeling that getting close to your brother means betraying your mom, or the other way around. - **Trouble speaking directly.** As an adult, it may be hard to tell the right person "that bothered me," so you end up venting to everyone else. - **Doubting your own version.** If you were told many conflicting stories, you may not trust your memory much. If this list feels familiar, you may also want to read [12 signs you were raised by a parent with narcissistic traits](https://ovejanegrablog.com/en/signs-of-narcissistic-parents/). ## I talk about this on video, too On the La Oveja Negra channel, I talk about what those of us who grew up in difficult families go through, and what helps us heal. This video is a good place to start (in Spanish): If these stories speak to you, [subscribe to La Oveja Negra on YouTube](https://www.youtube.com/@LaOvejaNegraHistorias?sub%5Fconfirmation=1&ref=ovejanegrablog.com). That's where we keep this conversation going. ## How to step out of the triangle You can't change how your parent communicates. What you can change is your position in the triangle. Some concrete steps: 1. **Stop being the messenger.** When you're asked to pass something along, you can say calmly: "It's better if you tell him yourself. I don't want to be in the middle." 2. **Don't take the gossip.** "I'd rather not talk about my sister when she's not here. If she has a problem with me, she can tell me." You don't need to argue about whether it's true. 3. **Check directly.** If you hear your brother said something about you, ask him before reacting: "I heard this. Is that right?" Often the story changes completely. 4. **Don't carry what isn't yours.** If your mom vents to you about your dad, you can set a kind boundary: "I understand you're upset. That's something to talk about with him, or with someone who can help. It puts me in a really hard spot." 5. **Build your own relationship with your siblings.** No go-betweens. A coffee, a call, a text that has nothing to do with the family. 6. **Accept that some may not want to.** One sibling may still be deep inside the triangle and not ready to leave. You can keep the door open without forcing it. ## A conversation with your sibling If it feels safe, an honest conversation can change a lot. It's not about building a case against your parents. It's about acknowledging what you both went through. A few lines that may help: - "I think we grew up competing for something neither of us asked for." - "I'm realizing a lot of what I thought about you came from what I was told. I'd like to actually get to know you." - "I don't want to trash anyone. I just want you and me to be okay." And if your sibling doesn't respond the way you hoped, that doesn't erase what you did: you stepped out of the triangle. That's already breaking the cycle. ## When we triangulate, too An honest part of healing is noticing whether we repeat the pattern. Do you complain about your partner to your kids? Do you ask one child to "tell" another something? This isn't about blaming yourself. It's about noticing. The first step to not passing this on is talking directly to the person it concerns, even when it's scary. You weren't the problem. You were caught in the middle of something that was never yours to carry. You're not alone, and you're not crazy. ## Sources - The Bowen Center for the Study of the Family. [Triangles](https://www.thebowencenter.org/triangles?ref=ovejanegrablog.com). - McCauley, D. M., Sloan, C. J., Xia, M., & Fosco, G. M. (2021). [Same Family, Divergent Realities: How Triangulation Preserves Parents' Illusory Harmony while Adolescents Navigate Interparental Conflicts](https://pmc.ncbi.nlm.nih.gov/articles/PMC8336947/?ref=ovejanegrablog.com). *Journal of Family Psychology*. - APA Dictionary of Psychology. [Triangulation](https://dictionary.apa.org/triangulation?ref=ovejanegrablog.com). - Gibson, Lindsay C. *Adult Children of Emotionally Immature Parents* (book). --- If you'd like to keep hearing stories from people breaking the cycle, [subscribe to La Oveja Negra on YouTube](https://www.youtube.com/@LaOvejaNegraHistorias?sub%5Fconfirmation=1&ref=ovejanegrablog.com) (videos in Spanish). *If you're going through a hard time, you don't have to carry it alone. In the U.S., call or text *988* (Suicide & Crisis Lifeline, free, 24/7). If you're in immediate danger, call 911\. In Mexico, you can call Línea de la Vida at 800 911 2000\. This blog shares personal experience and general information and is not a substitute for professional help.*