Is it normal that at first i liked him, but now i'm not too sure?

Well here goes, I met a guy on the internet last year and a couple months ago we met. He stayed at my house for about a week but on the second day he kissed me. It was my first kiss and all, but sometimes over the course of it, he would get a little carried away and I felt unsure about the whole thing. I don't feel pressured by him, but I don't really want to do more than just kiss and hug. He really likes me, and was even talking about a future together, which made me feel really guilty and bad because I'm still not sure if I really like him. He promised that he would travel with me which is my dream, as he is the only one who is willing to go travelling with me. But I really want to be just friends, and I really wasn't expecting he would like me in that way. I'm torn. What do I do? I kind of like him, but something is just... Missing. I could go on, but I have a question to answer. So what should I do? I'm worried that, now that we've already kissed/made out and stuff, that he now sees me as more than just a friend and that if I explain to him I don't want to go that far with him, that he will not be my friend anymore or go travelling with me :( I understand if he doesn't he's not worth it but in reality, that's not how the world works. Hearts will be broken, and I don't want either of us to be hurt in the long run. What should I do?