SUBREDDIT: r/relationships
TITLE: I messed up with a girl I really like, but I'm not sure if I'm reading her right, please help...
POST: So I'm a senior in highschool, and before you think "oh shit let's get out of here before we stick out dick in crazy",just please hear me out...So I've had a thing with this girl for a while now, let's call her Ann.  Well I've been texting another girl, in a friend-to-friend scheme, for a while,too, who we'll call Beth.  So I've told Ann about how strange Beth can get sometimes,and I have a thing for Ann, and Ann knows this...So I agreed to hang out with Beth, and I told Ann that,thinking it wouldn't be a big deal, but at the same time I told her about another guy, let's call him Jim, who had just sent a picture of his dick to Beth.  Jim is a player who was trying to talk to Ann a few weeks ago, but I told him to screw off, so now he's trying to mess around with Beth, so I told Ann (just so she would realize how much of a douche he is) about the dick pic, so she asked Jim, who then texted Beth about it, who then texted me pissed off about me telling Ann in the first place...Now both girls are mad at me; I couldn't care less about Beth, but I really hurt Ann, and she has trust issues because of her dad's history of abuse....What do I do?  Please help
TL;DR: 
2 girls are mad at me, 1 girl is the only one I really care about, she has trust issues,how do I resolve?