Trust has been a huge issuse for me as well, my first marriage (13 years) was destroyed by my PTSD, she was not supportive at all.....Im now in a new relationship, engaged (must be a glutant to pain) it's hard to let my guard down big time, I agree, it feels like Im setting myself up for disaster, shes very very supportive, educates herself, attends support groups, has met my Drs etc..... however when we first got together she lied to me (very small and really insignificant) however, it really devistated me, walls just got thicker. I have never been a jelous person ever, however, now living with PTSD has left me trusting no one, and Im a pretty jelous paranoid guy now....Really sucks.