Hes on vacation but he hardley talks to me? how do I make him talk?

there is this guy that I like a lot, and I know that he likes me to, we've made out and things. he left for vacation on friday to south carolina by himself. so far he hasnt really talked to me much at all, and I really just wanna talk to him. I think the main thing is I'm jealous that he has found someone else at the beach and is spending all his time with her that he just forgets about me. How do I get him to talk to me more and maybe find out if there is another girl?