Is he really into me, help?!?

I'm 19 and single. I've known this guy for a year now. He's 24 years old, and very good looking. When I added him on Facebook, he started talking to me on FB chat. And turns out he liked me, and I had a major crush on him the whole time. Ever since then he have been texting constantly. He's working out in Alberta and is only coming home in October. He's really nice and very sweet to me, and talks about really wanting to see me when he comes home, and how I'm going to get annoyed of him. He always says that he likes me more, or misses me more and says I might lose interest in him. But when I go on his profile page, all these girls are liking his stuff. And I'm wondering if it's just me but should I be worried? He talks about how he wants me to wait because he believes he will be perfect for me, and that I am everything he wants. And he also really likes the fact that I'm a virgin and says he would never rush me. Sometimes I just worry because he talks about all these girls hitting on him and him denying them saying he likes someone else at home. He even called me his girlfriend once, but how do I know.. I'm not there.. I really need help! Or an opinion! Thank you for answering!!