After being friends with benefits ... now he wants a date to feel more comfortable. Guys, please explain!?

I have a friends with benefits thing going with this guy I fell for ... We met nearly a year ago through mutual friends. At first he was intent on cultivating a relationship and he knew that I was a believer in until marriage, despite the fact that he's the opposite when it comes to such things. I slowly realized that I had a deep and profound attraction for him and we began hooking up, even after we broke up. He told me he didn't have the time at the moment because of his daughter, and I tried to understand that, so much in fact that I still saw him once in awhile. I decided to give him my virginity one night, after a friend's wedding, which MIGHT sound stupid but you have to realize that in my mind I really did care for him. Since then we've had a couple of more times, but most of the time he's always intoxicated (I've also come to realize that he's also an alcoholic). Yesterday night I wanted to talk to him face to face and surprisingly he hadn't been drinking! He told me that he doesn't want to have anymore and would rather go out on a couple of dates to get to know each other (which we had done in the past). I agreed that it would be a great option and that I had always been seeking something like that from the start. He's not sure if he's ready for a serious relationship but he wants to lay down a foundation. He also told me that if things weren't to work out I will probably forget about him fast, since the first person you lose your virginity to always seems to be the hardest to forget ... but that sooner or later I will probably find someone else whom I will have with and he'll be part of the past. Now here's the strange part, 15 minutes later he comes out from the bathroom and tells me that he actually does want to have . I ask him why the sudden change and he just kisses me. The next thing I know we're having but he s so soon, there's no time for me to enjoy ANYTHING (like in two minutes). He blames it on the fact that he's not drunk (he says he lasts longer then), that he feels guilt about not laying this and that foundation, and also says that he was just too turned on by me to be able to control himself. I've decided to leave him behind in the past and move on. I just want to know from a guy's point of view ... why he all of a sudden wanted to "build a foundation" (if that was even true)? Also, did he "really" feel guilty enough that he d that soon? I just want some people's perspectives! Please refrain from making rude comments. You can be blunt but remember, when you think you're in love you do a lot of things you may or may not regret (in my case, I don't regret them I just want some insight into this). Thanks in advance!