Is there something wrong with me ?

I love my husband with everything I have , but lately I've been thinking about the guy I lost my virginity to , we have just started  talking again and I get flushed and butterflies when I see him,  he's told me that he won't try to make a move on me because I'm married now , but I can't help feeling like I want to be with him, and I'm scared that me thinking about him is still cheating in a way, keep in mind , my husband doesn't know any of this. I told him that the guy that I lost my virginity to was just a guy I met, because if he knew who it was , he would be upset, and I can't do that to him, because he knows the guy. He knows everything that happened between me and the guy but I can't bring myself to tell him the guy's name. Is there something wrong with me , thinking about this guy? I hate saying this but I've even thought about him while making love with my husband .😔