Trying to step back

My heart goes out to all the posters on here, your stories have helped bring clarity to my own situation with my fiance. I finally decided a few weeks ago after another dysfunctional interaction with my fiance which ended in him trying to blame me and my actions for his lousy behavior, which in turn prompted him to tell me he needed to take a break from us. Following morning another discussion ensues over text which began by him (as he won't pick up his phone to talk like adults). I realized in my emotional haze after these two conversations that amongst all the other obstacles that we were facing in the relationship that he had zero desire to be accountable to me or the relationship. There w