The original poster (OP) had previously broken up with and asked his girlfriend to leave after she attended an afterparty with a male co-worker, Joe, who explicitly stated the OP was not invited. The community response to the initial situation generally suggested that the girlfriend, Anne, had been unfaithful.
Following the breakup, the OP felt a loss of interest in both Anne and Joe, but later looked at Joe’s Instagram account for resolution or confirmation of his decision to avoid discussion. This investigation revealed disturbing social media activity from Joe related to the party and Anne, leading the OP to question Anne’s motivations for staying in the relationship.

[Update] AITAH for breaking up with and kicking my girlfriend out because she went to an afterparty without me?



















As relationship expert Dr. John Gottman explains, “The most important thing in the world to a relationship is to have a good friendship. That’s the foundation for everything else.”
The situation described reveals a severe breakdown in trust and partnership, exacerbated by what appears to be group complicity. The OP’s decision to end the relationship was validated by the subsequent discovery of the co-worker’s mocking social media posts referencing a song about infidelity and a picture of Anne sitting on his lap, likely taken at the same event. This behavior demonstrates a lack of respect not only from the ex-girlfriend but also from the peer group who allegedly witnessed the OP being excluded and failed to offer support or warning. This silence from friends suggests a weak foundation in their social network, mirroring the weak foundation in the primary relationship.
The OP’s confusion regarding Anne’s upset upon leaving stems from expecting authentic remorse, whereas her reaction might have been rooted in disappointment over being caught, loss of convenience, or maintaining perceived control over the breakup. The OP’s actions were appropriate given the perceived breach of commitment and the lack of respect shown by both Anne and Joe. Moving forward, the OP should prioritize rebuilding self-worth and establishing clear, non-negotiable boundaries in future relationships, ensuring that partners and friends alike respect those boundaries without needing constant surveillance.
HERE’S HOW REDDIT BLEW UP AFTER HEARING THIS – PEOPLE COULDN’T BELIEVE IT.





























The original poster is currently grappling with the aftermath of discovering evidence suggesting his ex-girlfriend and her co-worker engaged in behavior implying infidelity, which was seemingly condoned or ignored by others at the party. The central conflict lies between the OP’s need for fidelity and respect in a public relationship versus the ex-girlfriend’s apparent desire to pursue other connections while maintaining the partnership.
Considering the ex-girlfriend’s expressed upset upon being kicked out versus her subsequent actions shown on social media, was her distress genuine, or was it primarily about losing control of the relationship’s end? Readers should consider whether the actions of the social circle amplified the betrayal or if the relationship was already fundamentally flawed before the party incident.







