Is it Wrong for My Best Friend to Date My Ex Without Asking Me First?

A 28-year-old woman refused to act like her feelings were optional, after she realized her best friend was dating her high school ex.

For over a decade, she and Sarah have been inseparable, and Mark was the kind of ex that left emotional bruises on both sides. They’re civil now, but the friendship part is where things get messy, because Sarah never mentioned her interest, never asked how the OP would feel, and only made it obvious through social media when the posts started popping up.

The OP felt blindsided, and Sarah insists she doesn’t need permission to date someone, which is exactly why this friendship is now on the edge.

Original Post

So I'm (28F) and I've been best friends with Sarah (26F) for over a decade. Sarah recently started dating my ex-boyfriend, Mark, from high school.

Mark and I had a messy breakup with hurt feelings on both sides, but we've reached a point of civility post-breakup. However, Sarah never mentioned anything about her interest in Mark or sought my opinion before starting a relationship with him.

I felt blindsided when I saw them together on social media. I confronted Sarah about it, expressing how uncomfortable and hurt I was about not being consulted or informed beforehand.

Sarah argued that she didn't need my permission to date Mark since they hit it off naturally. She feels I'm being possessive and controlling by questioning her choice.

Now, I'm torn between feeling betrayed by Sarah's actions and wondering if I'm overreacting. I value our friendship, but her disregard for my feelings has left me questioning our bond.

So AITA?

Why This Request Crossed a Line

The fact that Sarah started dating Mark without consulting the OP raises a serious question about loyalty in friendships. They’ve been best friends for a decade; that’s a significant bond. The OP's feelings of betrayal are entirely valid, especially when considering the emotional investment that comes with a long-term friendship. Mark may be an ex, but he shared a part of the OP's life that Sarah was privy to.

This isn’t just about dating an ex; it’s about how friendships can shift dramatically when romantic interests collide. The OP likely expected more respect and communication from Sarah, highlighting the gray areas of friendship ethics.

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Sarah and the OP’s decade-long best-friend bond is what makes seeing Mark on her feed feel like a betrayal instead of a coincidence.

The Emotional Fallout

This situation taps into a broader emotional landscape that many can relate to. The OP’s discovery via social media only adds insult to injury; it’s like being blindsided in a very public way. Friends are supposed to have each other’s backs, and finding out this way feels like a betrayal of trust. It’s a reminder that not all friendships can withstand the introduction of romantic entanglements.

The emotional fallout here isn’t just about jealousy; it’s about feeling sidelined in a pivotal moment. This dynamic can lead to a rift that could affect not just the OP and Sarah, but also Mark, who might find himself caught in the middle.

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The breakup might be in the past, but the OP’s hurt still comes rushing back the moment she confronts Sarah and gets hit with the “you’re just possessive” line.

It’s also like the AITA where someone declined to set up their best friend with their ex, even after both admitted romantic feelings.

Why Readers Are Divided

On the flip side, others argue that Sarah is entitled to her own feelings and relationships, suggesting that the OP should have moved on from Mark already. This division highlights how personal experiences shape our views on boundaries, revealing just how complex these social contracts can be.

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Instead of a heads-up before the relationship started, the OP only found out through social media, which makes the whole thing feel public and personal.

The Complexity of Friendships

This story illustrates a common challenge in friendships: the intersection of romantic interests and loyalty. The OP’s decade-long bond with Sarah makes the betrayal sting even more, as it’s not just about a guy but the shared history and trust built over years. Friendships often come with unspoken rules, and when they’re violated, it can lead to emotional chaos.

This situation also raises the question of whether friendships can truly survive the complications of love. Can Sarah and the OP restore their bond after this breach? Or has the relationship dynamic shifted irreparably? It’s a dilemma many can relate to, making this story resonate deeply.

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Now the OP is stuck weighing whether Sarah crossed a loyalty line, or whether she’s the one turning a natural connection into a power struggle.

Share your thoughts and experiences in the comments section.

Where Things Stand

This story highlights the fine line between friendship and romance, especially when exes are involved. The OP’s emotional turmoil is relatable, and it’s fascinating to see how the community responds. Do you think Sarah should have consulted the OP before dating Mark? Or does the right to pursue happiness outweigh friendship norms? These questions linger, reminding us that navigating relationships can be anything but straightforward.

Why This Matters

The situation between the OP and Sarah underscores the delicate balance of loyalty and personal autonomy in friendships.

If Sarah wanted “natural,” she should’ve started with a conversation, not a couple’s post.

Still wondering if Sarah dating Mark after your breakup counts as betrayal, read this AITA about dating a best friend’s ex without knowing unresolved feelings.