Ah Grounded, why do we have to want the things that are no good for us eh.  Even if he hasn’t said it in actual words his actions are telling you it loud and clear.  From what I’ve read of your posts, my honest answer would be that he probably hasn’t had much success on the dating sites and is wondering if you are still hanging around waiting for him – especially since if I understand correctly, there’s a pattern of sex pretty quickly when you guys get back together.  Seriously, everything you have written about this guy says he doesn’t value you in any way that matters to you – the real question is why you don’t value yourself enough to break away….??