@behret,
It sounds like he either got scared, or is still out there flirting with other people. It is still early in the "relationship" to be committed to him. If he has already cooled off, then I would say that you need to move on and if he's interested, he'll make an effort to communicate with you. Unfortunately, a lot of gay relationships move far too quickly for comfort a great deal of time. The best thing you can do for yourself is to distance yourself from him and see what he does in response. Three dates doesn't a relationship make.
Take time, look around and see what's out there. I know the first relationship and/or encounter you have when exploring that side of your sexuality is intense. Don't mistake intensity for compatibility. You don't need to chase him to be friends. You will find many other people with similar interests that will come and go in your life. Choose those who you are most compatible with outside the bedroom to keep in your life, and those that are only compatible in the bedroom at arms length. You need to have someone that is compatible in both places to be in a successful relations anyway. You aren't always going to be in the bedroom, so if you can't stand him outside it, you are going to have a hard time building a life with him.
Good luck,
Wolfie