I'm in love with two women and need help!?

Here goes, it's a long one... I'm a 22 year old male and I left my Ex girlfriend who was my first love about 4 months ago. I knew my Ex for 6 months before we dated for 4 and a half years and we got together when she was 14 and I was 17, for the first few years everything was magical and I would do anything to keep her. Over the last year we drifted apart and I take the blame. She often refused me sex and the spark just seemed not to be there like it used to be. I began hanging out with my guy friends more often and spending less and less time with my loving girlfriend who would often wait for me to come home to her. I knew I wasn't being a good boyfriend to her and each day I would feel really guilty when I'd come home late from a night with the guys because she was usually too tired to do what she wanted to do. She always wanted to spend time with me and I was always somewhere else.... In the last year I became basically a big piece of crap boyfriend, it wasn't intentional I just didn't give her what she deserved. It's really weird because I was always that awesome boyfriend to her, the kind of guy my Ex's girlfriends were jelious over. But for some reason I just didn't treat her right in the end. Anyway, I eventually broke it off with her when I started hanging around another girl whom I had lust for. At first breaking up with my Ex didn't phase me, it just seemed like what I wanted at the time. But after several weeks with a new girlfriend and no contact with my Ex I grew increasingly depressed to the point where all I could think about was my Ex. I felt extremely guilty for leaving her and our relationship when all she did was be there for me when I needed her! I tried visiting her and even asking her to forgive me but she understandably wanted nothing to do me. I finally felt what she felt when I crushed her heart, and it felt so bad!!!!! One of the worst things I have ever experienced!! When she found out I was in a new relationship she ended up going out with one of my close friends who told her lies about me being with other girls which upset her... This ruined my relationship with my Ex as well as my only close circle of friends. It's been really dramatic and I've tried my best to damage control everything by keeping my current relationship away from my old social group as I realized that I had a lot fewer true friends afterall. I was angry and felt so guilty for leaving my Ex for another girl that I decided it was for her best to let her go and hopefully time would heal everything. At the time I was lucky enough to have a girlfriend to support me through my breakup, but I sometimes felt our relationship just became more of a distraction from the relationship I ruined with my Ex. After a few months with my new girlfriend I fell in love with her. A lot of her personality reminds me of my Ex but at the same time she is different and I like that too. She wants sex even more than I do... something I find strange in a woman and it's nice to feel fulfilled that way for a change. Anyway I had to go over to my Ex's The other day to pickup some of my things that I had left there. My current girlfriend didn't want me to go, but I told her I had to get my stuff and she was really understanding about it, even though it made her upset. So I go over to my Ex's place and all sorts of old feelings start rushing through me but none of it was lust, it was affection, and love... I really missed her a lot and missed caring for her. I was excited and sad to pickup my things because I knew it was the last time I'd have a reason to see her. Anyways she started asking me about regrets and I told her that I completely regreted treating her badly and that I think about it all the time and it kills me....Then she tells me how she doesn't love her new boyfriend (my ex-friend who is an asshole) and that she want's me back. She even said that she only got with him to piss me off and misses me like crazy. I am totally confused because I love my Ex more than anything, she's my first love. I know it's dumb but she could do anything to me and I'd still love her, the love I have for her is completely unconditional. I still love her after she slept with my "close friend". The problem is that I really do love this new girl I'm with and she loves me back as well. I don't think it's fair to leave my new girlfriend for my Ex, but at the same time if I stay with my new girlfriend I won't even be able to talk to my Ex because she doesn't like it... which I can understand. I know this sounds lame but I feel trapped loving two women who both love me and I don't know what to do. I want my Ex to be happy and I know that if I'm always around it will make it harder for her to get over me and find somebody else, but I can't stop thinking about her when shes not there and I literally dream about her every night. I miss the old times we had and regret all the times I treated her poorly. I learned so much from her and it seems like I could never t