<human>: I've worked with this guy for over five years now. I was really into him when I first started working there but he was in a relationship then. He is my best friend at work and we get together outside of work occasionally too. He broke up with his girlfriend over Christmas and has been single since. 

My boyfriend (33M) and I got together two years ago. It's the best relationship I've ever had. It's really easy and before last week I would have said that he's "the one." We live together, we were planning on getting married and starting a family soon. Everything was really good. 

Last week the guy I work with told me that he loved me and wishes he could be with me. Since then he's been all I can think about. My crush on him is definitely back, to the point where I don't trust myself to be alone with him. I've been having dreams about having sex with him. I feel so guilty about it and I have no idea what to do. I won't cheat obviously but I want to be with him so badly right now.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: my friend at work who I used to have a crush on told me he loves me but I'm in a relationship. I'm feeling really conflicted.