TLDR, found out my, now ex, best friend has been dating my, now ex, girlfriend of almost two years a week after we broke up. Feels like i don't. I cannot even think about her. I thought it was just a normal fight, and it will be solved in a few days, but it became the end of my love story.
The sheer concept of seeing one of my mates with an ex is something that'd affect me The big alarm bell was when Joey's girlfriend Kathy cheats on him with Chandler. Not only is that his best friend, but he massively betrayed him. Dating their ex undermines the latter two, bringing a sense of betrayal I. And what happens if this is your best friend's girlfriend? with any of my friends dating my ex, falling in love with her and even marrying her.