So we broke up 6 months ago. She found a boyfriend 3 weeks later. We broke up because i treated her like shit. Anyways she slept with him and shit but would write me that she misses me. I was her first real love. And she said maybe she’ll break up with him when we see each other again. (We live further away) Now she broke up with him one month ago because he is a junky but still she slept with him. And wants me back? What’s the right thing to do?