A little conundrum....

Sorry I've been gone for a while, but I need some advice on a personal matter that I have no one to talk to about, so I hope I can count on your guy's help.

I started seeing this guy around the end of August. I really love spending time with him, but whenever we make plans or have a day off work together (we work in the same place,) he seems to always disappoint me and not show up or even call. Or his wonderful ex-girlfriend will stop by his place with their kid and insist that the three of them spend time together. Whenever we do spend time together, it is usually pretty late in the evening since we both work the night shift. We'll put in a movie, and less that half an hour into the movie we're making out on the couch, which more than usually leads to other things, if you get what I mean. We've only been out on two actual dates since we started dating.

I'm starting to get a little fed up with him. He's my first boyfriend ever, plus he is the first guy that I've had sex with. Thats probably why this is such a hard decision whether or not to stay with him. We have this physical attraction that is just explosive. Even when he just runs his fingers down my arm it drives me crazy. But if he's going to disappoint me, then why should I keep him around??

HELP ME!!!!!