AITAH for breaking up with my gf because she slept with someone after saying "I love you"

throwawaye6499 2177 comments

The original poster (OP) had a long-standing friendship with his current girlfriend. Recently, she initiated a romantic relationship with him, which surprised the OP because he did not believe she previously viewed him in that light.

After a few dates where things seemed to be progressing well, the girlfriend brought up the topic of exclusivity. The OP was under the impression that their relationship was already exclusive, especially after she confessed her love for him.

When the OP pressed the issue, the girlfriend admitted to sleeping with someone else, leading the OP to immediately end the relationship, leaving him questioning if his expectation of implied exclusivity after a declaration of love was reasonable.

AITAH for breaking up with my gf because she slept with someone after saying "I love you"
‘AITAH for breaking up with my gf because she slept with someone after saying "I love you"’

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Internet Users Didn’t Hold Back:

The thread exploded with reactions. Whether agreeing or disagreeing, everyone had something to say — and they said it loud.

The central conflict revolves around the OP's deeply held belief that a declaration of love inherently signifies commitment and exclusivity in a dating context.

This belief clashed directly with his girlfriend's perspective, which required an explicit conversation to es**blish relationship boundaries, leading to a significant breach of trust when she acted on that a*sumption.

The core question is whether it is reasonable to expect exclusivity based solely on a verbal declaration of love, or if formalizing the relationship status through direct conversation is a necessary prerequisite for commitment. Where does the responsibility lie in initiating the exclusivity talk?