You got it buddy....keep thinking about it. Dig thru those feelings. I do sense the jealousy, but also fear. There's the lack of trust, which feeds them both. And there's some anger in there too. Feel those feelings....understand them, really explore them....but don't hold on to them too tight. Let them move thru you.
I don't think you are 100% right about the security and choices there. You have the ability to set boundaries for you, and enforce them. It's difficult, but think about it in terms of "what can I do, to protect me?"
Couple of things I'd like you to think about that will counter some of those negative feelings....forgiveness....and compassion.
Mach1 told me many times after the schit hit the fan...."let things sit a bit." I think that's solid advice for you right now too. Give some space and time, focus on your own stuff. Don't jump to conclusions or be quick to make decisions.