I have a boyfriend but I fancy someone else!! Help!!!?

Just gonna make another question cause I didn't get a proper answer!.....well basically I'm confused and think I have a crush on this guy I met in a night club!!... We had a a great connection! ..straight away and he really respected me that I had a bf... We were talking the whole night ad he added me on fb!...he never talked to me on it..but wen I darted a convo he seemed really into me..saying "I'd love to know you better and usually I don't feel that way wen I'm on a night out" he said he hadn't been with someone for 2 years and that I seemed diffrent to most girls he talked to....but when ever I'm on fb he'll never Start the convo on fb chat!!....is it cause he knows I have a bf and that he should but wen I start he does, he flirty yet a gentlemen and won't ask certain things... Like he'd just ask me wat hobbies I like and he love to bring me to a beach and all........... Since my current bf is my first I just don't know wat to do!! :(... Like Hes lovely but I just love him, I don't fancy him anymore... Like I don't really like kissing him that much, just do it for him.....he really takes care of me... But like I'm only 18..I don't want to feel like I'm compromising and just adjusting to what I have..... Am I being normal?...help what shoud I do??