withit, I would say give it a chance and get to know him better. As you get to know him, you will better be able to judge his true colors and if you two are a good match. That's the purpose of dating--to get to know each other and judge compatibility. If you discover you and he are not that great a match after all, you can just stop dating him. No need to worry about marriage yet--you've only had one date! Good luck.