Okay, so I won't beat around the bush, this is my situation.

I just started dating this guy about a month ago, and it was going okay for a little bit. But recently, I've been feeling like I might not like him as much as you need to, to be boyfriend and girlfriend. It was all made clear yesterday, however. We went on a Valentine's Day date and it was going well, but I just felt off the whole night. It wasn't until he kissed me for the first time (and it was my very first kiss, too) that I realized fully, I don't like him like that. The kiss made me miserable! I got absolutely nothing from it! And it was a terrible kiss, too! Even if it was terrible, I still should have felt something. The more I think about it today, the more I realized I just like him as a friend. But you never know how you'll feel about someone until you try it out.

My problem lies in the fact that I'm his first girlfriend and he's really, really excited about dating someone. I feel guilty leading him on, but at the same time, I would feel guilty hurting his feelings.

I don't know what to do...

Any suggestions?