NS, I need some advice.

So here's the story.  It involves two girls, named Annie and Jess, and me. 

So basically where I stand right now is as follows:

   I've liked Jess for a while, but she had a boyfriend for over a year so I put it out of my mind.  I also had a girlfriend, who I loved (for a time, anyway), so I didn't really think about Jess very much at all.  I've been single since August; Jess just broke up with her boyfriend a few weeks ago.  She is absolutely head-over-heels in love with him, but she's tired of being treated like shit, or so she says.   He's an asshole, by the way; he cheated on her three times that we (Jess' friends) know of. 
   Despite all her talk of being fed up with him, she is having a very hard time getting over him.  And the last time they broke up, she hooked up with two different guys within a week, then cut all ties with them and got back together with the boyfriend.  Now, it seems very unlikely that she'll go back to the boyfriend, but she is still wants to hook up with people to try and put him out of her mind.  And one of those people is me.
   The problem is, I don't want to be just a stepping stone on her path to forgetting him.  I don't want to hook up with her once and forget it ever happened, as she does.  She wants to hook up with me to "get her numbers up," as a text from her to a friend of hers says.  And quite simply, I like her too much to do that.  I'd rather wait until she is prepared to see me as something more than that.  But God damn it, she is so fucking hot.  Recently, she has become upset with me--although she would never show it, she thinks I know nothing of her thoughts--over what she has heard about Annie and me. 

   Annie liked me a while back, but I chose my girlfriend (now ex-girlfriend) over her.  I don't regret that decision,  because Annie is a much different person now than she was then.  Now, we're trying to make things work (we have been since before all that stuff with Jess) but she lives rather far away, and neither of us can drive.  I'm seeing her this Friday, but it will be the first time I've seen her in 11 weeks.  And I can't help but wonder, even though she told me last weekend that she would try harder to find time for me, if I will really be able to see her enough.  She also hooked up with another guy a few weeks ago, and although we weren't, and aren't really "together" per se because we see each other so infrequently, and although she felt absolutely horrible about it and apologized upwards, downwards, backwards and sideways, that hasn't left my mind. 

So basically, while I'd really like to be with Jess, she isn't ready to see me as anything more than a rebound.  And while I'd also really like to be with Annie (her and I click exceptionally well, more so than my ex and possibly more so than Jess), she seldom has time for me, and her little slip up a few weeks ago has me more than a little concerned.  I told her, by the way, that if we do end up together and she hooks up with the kid again, then she can go fuck herself...I said it nicer, though.

So NS, what should I do?
By the way, I would post pictures of the girls, but frankly this story has very little to do with looks, and I wouldn't want them posting pictures of me on a website that I'd never heard of, so I don't want to do that to them.  Sorry kids.  Suffice it to say that they look very different from each other, but are both very good looking in their own right.  Not like Tosh saying Jane's a solid 7.  Like actually good looking.  I know how to pick 'em.

P.S.
This is a really good song.