I'm trying to date someone...I have the same issues you mention...dating someone I reconnected with that I knew well about 15 years ago but never dated, and I have run into him off and on since then. But I have told him too much out of blind trust.
What I would recommend, if you do decide to date, is to tell the guy as little as possible (at first...until you trust him completely and know you can tell him more...move slowly) re: your "state"...I have already opened my mouth way too much because I thought I was safe with someone I have "known" for so long, and I was way wrong. I have been picked apart, poked at, etc...the problem is with issues like ours, unless someone has been there, they are SO hard to explain. But if you are interested in get out there, definitely do so, just be safe re: who you trust with YOU and what you are going through. It's tough to explain (and be understood), and you really need to make sure you are "safe" with the other person before you explain your situation and then regret it, lord knows I do. I think I am about ready to throw in the towel. I would rather be alone then be picked apart and prodded with a stick because he can't see my pov and always thinks he must be right.
Anyway, hugs to you and if you date, just do so safely and watch out for yourself first and foremost!