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

My initial thought was that he is looking for a final fling before he gets married, which seems uncharacteristic, but possible. I am single, so he knows I have no attachments, however, he also knows that I would never consider cheating an option. We have been friends for about 2 years, but he has known his fiancee for about 7 years. He got engaged about 5 months ago, and today, he revealed that he feels like he is more compatible with me than his fiancee. 

He did not mention breaking up with her or taking any sort of actions, or getting together, he simply told me how he felt. I told him that I had initially been attracted to him and interested, but put it out of my head when I found out he had a girlfriend. That was the end of the conversation, at least for now. I really don't know what to make of this. I certainly did not ever make my feelings known to him prior to this nor have I flirted with him, because I had no intentions of pursuing someone in a relationship. 

I don't  know what is going on, but from the conversation, it really does not sound like he is ready for marriage, as not only did he question his connection with his current partner, but he also reached out to someone else and expressed feelings. Either way, this situation seems like it could hurt a lot of people, myself  included, and I am not sure what to do or how to handle this. To make things worse, we live in the same apartment complex, so it is not as if I can never see him or his fiancee again without moving.
<bot>: Friend may be trying to either use me as an out for his engagement or one last fling. What can I do or say?