Guys, what does it mean when a guy says he wants to kiss you?

i know it may sound stupid but does it mean he just wants to kiss me and that's over or he wants more than that? it's confusing because this guy is someone that I actually have a crush on and I definitely want more than a kiss or a fling...two reasons why I'm confused is that I heard that he had a girlfriend and I see the girl putting up comments on his fb profile and what not that would suggest that they're together but he told me he doesn't have a gf...then the other thing is why would he want to kiss me...i see myself as an average beauty most guys usually go after my friends and see me as one of the guys even though I am not a tomboy or do gross stuff...so why me?
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i'm really starting to think that he's playing with me because I just saw a link where he's telling one of the girl's friends to kiss her for him and wish her a good day...it's kinda hurtful because I've been crushing for too many years on this guy for him to play with my feelings and not be hurt
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we kissed it was amazing...we talked constantly since then until a few days ago. when I call he doesn't answer my calls nor my text messages. Monday was his last exam and we were supposed to met up the following day but he didn't answer plans changed I was a little worried that I did smething but then caling on Tuesday I found out he misplaced his phone. then Wednesday we spoke briefly on line and since Tuesday he hasn't answered my calls or messages. so what"s up now?!
Guys, what does it mean when a guy says he wants to kiss you?
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