During and after my tough break-up with exP, I shared personal things with friends about the situation hoping for advice or just a shoulder to cry on. I am not one for airing my dirty laundry in public (bar Mumsnet where I'm anonymous!), but I found out from my ex that a certain person has been going around saying I have been telling 'everyone' he's done X,Y,Z. He would not say who the culprit was.
I have serious suspicions about a certain 'friend' who has been acting really bizarrely lately. e.g. distancing herself on purpose and then complaining that she's feeling left out. Not bothering with her friends and only chiming in when there's some interesting gossip in it for her. Sharing another friend's upset with someone and gloating about knowing something they didn't. I don't want to start a witch hunt in case this person is genuinely innocent, but she has made certain comments which prove that she is capable of this.
If it is not this person, then my only other conclusion is that exP has made the whole thing up to make me look bad. But neither of us have anything to gain from doing that, and we have been civil with each other up until this point.
I just want it to blow over and forget the whole thing, but if I never find out who betrayed my trust, I might always be wary of my own friends. I think everyone has the right to feel comfortable sharing personal things knowing it won't go any further.
Long story short, would I be unreasonable to confront (or at least ask casually) oddly behaving friend if it was her, or should I just let it go?