SHOULD I ?

Okay so like 4 years ago I met this guy on a night out . I remember him walking in with his friends and he just caught my eye , instantly I gravitated towards him it was so weird because I’m not one to come up to men or make the first move unles I’m positive he was feeling me but it was just a feeling. We talked on and off that summer I was healing he had just came out of a relationship but seemed to talk for hours and I was so comfortable with him and he was comfortable with me . We could’ve just had sex but I felt like it was more than that . I remember him trying to invite to his bestfriend house warming and at the time I was really doubting myself and just decided not to go . Through out the years I’ve talked and dated other men and he’s done his thing as well . Years later I’m still thinking about him and don’t know if I should reach out to him or just stay to myself 😩😩