Very friendly with a female friend..could it be more? Advice please?

Say you have a guy friend and you know there's this attraction between you. Lets say that you have to move to another state shortly after you meet but you guys keep in touch over chat...not a lot but once every couple of weeks and he flirts telling you he's falling for you. Say you catch up with each other when you're back for work and actually stay with him one night, even get close like kissing but not sex. You don't talk about your feelings as you have to go back next day but he contacts you a while later and you get on..but don't discuss the kiss. I've heard that if a guy keeps in contact with a girl he has kisses that he is interested in her as more than a friend? Guys opinions really appreciated here please. (its a difficult situation due to heavy work loads and long distance).Very friendly with a female friend..could it be more? Advice please?
well have recently been in a relationship where me n a guy got closer as mates den we ended up getting closer in a kissing way! it was good at first but then the second time came and i ddin't like it. the best thing about this though was that i was honest with him and told him how i felt about the situation, he ended up agreeing with me and now we are just friends, just be honest with each other, that is my advice! just because you become initimate it doesn't mean you should become less open than you was before!