Friends with benefits........What do you think?

So i have been friends with this guy for 2 years now. We got close when we started working with each other a year ago. And since then we have just been getting closer and closer. I started liking him june of last year and that just opened up a door for a big emotional rollercoaster. He'd say that he didn't like me but then he'd say that he did and then he'd say that he likes me but he doesn't think he's ready for a relationship. it was just a lot of ****. I finally got over him a long time ago and it's like me and him got reeeeally close after. He would call me a lot and would refer to me as his best friend but then joke around and talk like how we'd be together. We'd constantly flirt but it would be all in good fun. Nothing serious. cause i don't like him like that anymore. Recently i got my first kiss from him, i'm 17.. we were on my senior trip and we were alone in one of the cabins and it just happened. We flirt more and we're a little more affectionate with each other in public ex. the way he looks at me...he hugs me a lot...he's always complimenting me....and he tries to kiss me sometimes. We have kissed a couple of times since the initial incident, and it's sort of a regular thing. I feel really comfortable and so does he. We've never gone beyond kissing..we just flirt alot and a lot of people assume we're a couple even though we aren't.......oh and i just want to say that this is my last month with him cause we're both graduating and going off to college. What do you guys think?