You got it right in my book. I went through four years of trying to convince myself that my daughter hadn't relapsed after she had her daughter.
When they start wrecking cars and never have any money (they do they just save theirs for drugs) believe me...they have relapsed. He didn't break up with you because you don't trust him. He broke up with you because you were onto him.
You've been down this road before and you know it's not a fun one. You are obviously a strong person or you would not have gotten out of it before. Please show yourself the same repect you did before and RUN!!
Being alone is no fun for the time being, but at least there's not the chaos of addiction!
Good luck and keep us posted.