So, my partner and I have been together for nearly a year. We dated a long time ago too.
One of my best friends has another friend who was friends with my partner (‘mutual friend’). When DP and I were talking again, mutual friend voiced to my best friend that they were worried he would get hurt as there was history and old feelings. Fine - mutual friend was fair to be concerned.
I spoke to best friend at the time about my feelings and about the fact that I was casually sleeping with someone. Best friend screenshotted these messages and sent them to mutual friend without my knowledge which DP has just told me about (part of a relevant conversation). DP obviously doesn’t give a shit about the content of the messages.
I am fucking livid. I can’t believe best friend screenshotted messages I’d told her in confidence and then sent them to someone I’m not even really friends with?! It’s a massive breach of trust but it did happen nearly a year ago and I’m not sure what can gained from raising it now. My instinct, tbh, is to talk to her about it in person. I totally get mutual friend being concerned but my best friend only vaguely knew DP so frankly it had fuck all to do with her.
YABU - just leave it
YANBU - raise it in a calm way