<human>: We were together for 2 and a half years. We have been broken up for a year. I'm currently in a relationship with someone new and I really like him, but I can't seem to get over my first love. I feel like I am over him but not over what we had. I've never had such a connection with anyone. It was love at first sight for both of us. We fell in love fast and hard. It was a very passionate and intense relationship. 

I really like my boyfriend but, lately I often find myself thinking that maybe my ex was the only person for me, and I lost my chance to truly be happy. I know this is dumb but the thought keeps coming to me. I hadn't been thinking about him much before I met my new boyfriend, but now every memory keeps coming back to me. I feel like I'm never going to feel the way I did for my first love. I went into that relationship headfirst and gave it everything I had, and after all that happened I don't think I can ever do it again. I feel like I have a wall up because of how badly I was hurt when it ended. I'm not really sure of what to do. Advice?

Can you give me the gist of the text in a nutshell?
<bot>: I can't get over my first love and I feel it may interfere with what could be a healthy relationship. Advice please.