I am feeling a lot of feelings for a friend that came back into my life but I have a bf already.?

My boyfriend and I live together and we have been dating for almost a year. He has lost my trust due to him lieing about strange addictions such a teen porn and not telling me he has never gotten checked for HIV and other stuff that made me loose his trust. Now he is trying his hardest to gain my trust since he is sure now that he wants to be with me forever. A friend from the past found me on FB and we all ended up hanging out but I felt so much unspoken energy between us and he even thinks he can read my mind. He used to be overweight back in the day and after I asked him how he found me he said he wanted to get in touch with a lof of his friends and I was very memorable and made such a big impact on his life and getting out of his shell. He is very thoughtful, my boyfriend is not. Sweet and calm, my boyfriend is not and I just don't know what is going on with me. I can't stop thinking about him and when we see each other we lock eyes a lot. Am I being ridiculous or this a sign of something new?