<human>: Condense the text into a few key points

I started dating this guy in the beginning of February. We've been on three dates and started having sex on the 2nd date. I've already ruled him out as relationship-materal mainly due to the following:

1) He's very noncommittal about setting up dates, which is why we've only been on three dates in two months. He said he would call to schedule/confirm a date, but twice he left me hanging.

2) I can't adjust to his hot and cold attitude. When I'm with him, he is everything that I could ask for: attentive, affectionate, funny, and fun to be around with. When I'm not with him, I get the feeling that his interest level is minimal due to his lack of communication between dates. Sometimes, he would not even respond back to my texts. I also get the feeling that I'm his back-up plan for when he has no one else to hit up.

Based on the above, I know I should move on, but the sex is INCREDIBLE. I've only had one sexual partner before him and he and I didn't do much, so I'm still kind of inexperienced. I want to keep seeing him casually just to gain some sexual experience. I feel like I can learn a lot from him and have fun at the same time. However, a part of me feels like I'm setting myself up for a whole lot of pain because I'm not sure if I'm the type of woman who can do casual sex. I'm conflicted. Some days, I feel like I'm okay with it. Other days, I feel like I should wait until I'm in a relationship again.

Any advice from those who have been in this situation before? Any tips or things to look out for should I choose to pursue this casual sex relationship? Thanks!
<bot>: Want to keep seeing a guy just for the sex, but feel conflicted about whether or not I'm emotionally mature enough for a sex-only relationship.