Oh goodness, I agree with Londres.
I will say that when I'm 'in love', I don't really have the urge to figure out if someone else is dating material. They just aren't, because I am happy.
I also am guessing that you are young. Let me tell you something I've learned over the years, why tempt fate? Why hang out and 'reconnect' with someon that you once had a crush on (and may have a crush on you) when you are dating someone? Isn't that asking for trouble and drama when your boyfriend gets jealous?? I mean . . . you can be aquaintences and friendly without hanging out one on one together, right?
So, I agree with Londres. I'm not sure what you want and it seems you are confused as well. good luck
"My boyfriend and I have been together for a year and 3 months now and we are just madly in love with each other." That's great.
BUT.....then you go on to say "I started hanging out with him and realized how much we wouldn't work together as a couple but I still look at him like a piece of meat." AND THEN SAY "If I think about what it would be like to have a one night stand with this other person....." What's that all about? If you are truly madly in love with this other guy I don't think you are going to be thinking about having a fling with another. In a sense, I would call this emotionally cheating.
You need to sort your feelings out and pronto. If you truly are madly in love with your current bf and cherish your relationship, by all means cut off and end this "other situation" with this "old friend." You are playing with fire if you don't.
Think about what YOU have and what YOU could lose by making a silly mistake.