I'm really sorry if this sounds trite and I don't want to come across as smug etc, I just want some advice really. Also apologies if it's a bit hard to follow!
I split up with emotionally abusive X in December. Towards the end of relationship I kept thinking about an old friend (A) who was kind of a one-who-got-away. A couple of months after leaving XP I was getting in touch with all my old friends who I'd lost touch with when I was with XP. So I got in touch with A, we chatted for a bit, and after another couple of months I told him I had always wondered what might have happened between us, he said he had too, and we got chatting and after a while it settled into a casual sex type thing, although he always maintained that we were friends first. Now I haven't spoken to him properly in months and have just made the uncomfortable realisation that the only reason I'm still sleeping with him is that I'm scared without the sex he won't have a reason to be friends with me at all. Which I know is stupid because if he's that shallow then how can I miss his total non-friendship in the first place! But just a bit sad about my crappy judgement again, because I really thought he was different. :(
Anyway, still waiting to speak to him to see what's going on with him TBH. The second thing which happened was another old friend (B) who I had a bit of a weird thing with years ago is hanging around and he's clearly stated that he's interested, whereas I am not - and even if I was he is in a relationship (albeit rocky, but still, big
) I get on with him as a friend though and I was pretty clear with him that nothing would happen between us, I don't know whether he is still holding out hope though?
Now I have someone else who I've just got back into contact with (C) who I did have a crush on at one point, but we were 17 and it lasted 2 months before someone else came along and I forgot all about him
now I'm getting pretty strong signals from him as well, although he keeps denying it and has never made any kind of move on me, and TBH, I can feel myself getting emotionally involved here as well 
So, I know I am young, but I can't really act like it and just go about having constantly changing boyfriends and partners because I have DS to worry about. I'm just wondering if I flirt too much (I'm a natural flirt, I can't help it
and am too easily charmed, it seems whenever someone is interested in me I turn into a character from a bad chick lit story, and I'm thinking maybe it would be an idea for me to just be single for a bit and not think about anybody! Although that was kind of the plan up until now, and one of the reasons why I haven't had a proper relationship with 'A', but that hasn't really stopped me being distinctly 'teen angst' over him at times. And now if that was to be over, I don't think that 'C' is likely to jump right in, I'm pretty sure he would wait for a clear green light but I have a feeling that if I'm not careful I'm going to get carried away with that as well, in my head if not actually in real life.
Aargh, is relationship maturity something you can learn, or do you just have to keep on making the mistakes? And am I going to look back on this and kick myself for having 3 blokes interested and fighting it because I think I should even if I don't necessarily want to? 