I'm struggling with this too. It's so easy to see other people's sitchs and have something meaningful to say, but we can't see through our own.
What I will say, as someone who has overcome severe abandonment issues, it does happen: it takes work. Trust is earned by the little things. The fight that doesn't end in someone on the couch. The openness that happens when you bare yourself to someone and they don't run or laugh. Of course, my sitch is bringing up all of my old abadonment issues but I'm not going to let him take that away from me too. And if you approach it with that mentality, you can master the pain. don't let what she did make you cold. She's not worth it. No one is. Remember, none of us gets out of this alive, how do you want to live? I made a conscious decision that Id rather get close to people and lose them than to never have had it at all. The pain to me is worth it.
M:26 H:32 T:8yrs ILYBNILWY/ "I'm not happy": 2/6/16 D-Day-discovered PA/EA: 2/10/16 Separated: 2/14/16 He's living with OW I moved to different state: 06/16 Currently: Trying to move forward