Love or lost - head or heart???

I have somehow managed to get myself in the biggest mess in my life ever and i'm not sure where to start! ... I'm a 28 year old man and was dating a lovely 21 year old lass for around 8 months. I was madly in love with her she was the world to me in them 8 months BUT she always maintained she didn't love me and didn't want anything serious. At times we fell out over the fact i wanted more from the "relationship" than her. Anyway she finished things with me and just a couple of days later announced she was back with her ex partner! With no contact for over a month i finally moved on. I found myself with a stunning 19yr old girl. She is the "dream girl" if ever there was one. She is the total opposite of the last girl. She tells me (and the world) how madly in love with me she is and that she never wants to be without me. The sex is out of this world amazing! Now the problems start ... I really like this new girl but i dont have the same feelings about her as i did the last one. I don't get the butterflies and exitement when i see her (even though she is stunningly good looking). I enjoy her company and the sex but it's just not the same. I have come close to this girl, her family and her friends - things are "safe and solid" so to say. Out of the blue the older girl rang me up. I answered and we talked. She told me how she made a massive mistake going back with her ex and it only lasted 1 week before he finished with him again - because she come to realise she loved me. She burst into tears and literally begged for me back. I have never known her to be like this and it really got to me. I told her about the new girl and she fell apart knowing it was her fault she lost me. As we talked i did tell her i still loved her... She might not be the dream girl but she is a really lovely lass and every minute i spent with her was magic. So now i'm totally messed up. Do i stay with the lass i am with now who is amazing in bed and a good laugh and really really loves me... OR do i get back with the other girl who has already messed me about and dumped me before - but i do love??? I think the new girl deserves a chance she is so nice and really attractive everyone likes her but i dont quite feel as strongly about her as i do the other lass ... my head is allover i feel ill over it - infact im going grey over it haha then none will want me lmfao!!!

my advice to you, would be to stick with the girl you have! you are still young and do not need your ex to mess with your head, which she is clearly doing, Women are at times very emotioinal and can manipulate, They sometimes do not realise they are doing so. Your ex sounds like a classic case of being rejected by her ex and needing some comfort and someone to make her feel beter; which I am afraid is you, you are sure thing for her. There is no point breaking up with someone who loves you and who you care for, on the whim of you ex, believe me she will dump you as soon as someone better comes along, If she truely loves you, she will want you to be happy and respect you are already in a new relationship and leave you alone. I know this as have first hand expeirence of this type of behaviour.