I'm currently in what is actually one of the best and healthiest relationships I've literally ever been in. They treat me right, don't make me feel like I need to change anything about myself just to be 'good enough' for them, and overall just genuinely care about me. Of course, this is all just bringing back what one of my past relationships felt like - secure and connected, but in the end they ended up stabbing me in the back and physically abandoning me for months, after years of being together. Feeling this way again and actually letting myself get close with someone else in this way has brought with it that feeling of dread that they'll also just end up leaving me again. I might be paranoid or something, but I genuinely just don't know what to do about this anymore.