How do I approach this

So I go to this event to play a card game with some friends (Magic the gathering...) And there is this guy who attends who is a rather nice run guy and over a good amount of weeks slowly developed a friendship with the guy. I had no intentions on dating him for I believe(ed?) him to be straight with a girlfriend. We talk casually via text everyday or so. Anyways a few days ago we were playing our game and I guess I was kind of sick and had a massive headache and made a dumb move. So I forfeited the game and let him win and right then he glanced into my eyes and whispered "I love you." So subtly if I wasnt paying attention could of easily missed it. I asked him what did you day and he said "What, I didn't day anything." In that lame deny tone that he obviously did say something but refused to admit it then abruptly changed the conversation.


I talked to him later and recently his relationship with his girlfriend is failing so my guess is maybe he's trying use me as like a comfort teddy bear or to get back at her? Anwyas that's jumping to conclusions, I also then told him that I do have genuine feelings for him and if he did want to a gave a relationship a chance I wouldnt mind to try it.

So do I just give him space and time to get comfortable with his feelings or releasing the lack there of? Or should I push a little into this, dropping kind compliments and things along those lines.

Note: He gives off bi curious tendencies, such as admiring the looks of other guys (Telling me this really) but only talks about girls when in public.