<human>: Can you give me a shortened version of the text?

Two years ago I started casually seeing my current bf, lets call him   Mane, and we had a thing for a month or so. He ended stuff with    me because the girl he's always wanted to be with finally wanted to be with him back. I'm not completely sure what happened between them but I know for sure that she had to pick between him and another guy and she chose the other guy. For the next two years I  casually see him out and I act normal around him.  

 A couple of months ago I ended up drinking too much and going home with him. I figured since the damage was already done, it wouldn't hurt to continue sleeping with him. Well, fast forward 7 months now we're dating, but I still feel really insecure about his ex. He told me that he would always love her, but he would never get back with her. Every time I see her I feel really uncomfortable and am reminded that I will always be number 2. I don't know if this is what is actually happening, but this is how it makes me feel. How do I get over feeling like I'll never be as good as her, and I'm the consolation prize?
<bot>: Feel like I'll always be number 2 to his ex because Mane has dumped me for her before. What can I do to get over this paranoia?