Help!! My girlfriend of 5 years left me (sort of)

Ok This is going to sound like the most screwed up story but here goes. I am a 27 year old guy who was in a "relationship" with a 35 year old women with three kids and divorced twice. We started dating in 2008. Everything was good in the beginning, the sex was amazing (although nothing compared to the future with her sexually) and we got along. Then as time went on I learned she was still married (separated for about 1 year) and had not even filed for divorce yet.She told me she didnt have the money and whatnot. Anyways I ended meeting the kids 2 months into the relationship and they loved me twins that were 4 at the time and a 14 year old boy. As time went on I would bend over backwards for this girl from bringing the kids to school , to just taking them out to chuck e cheese. As time went on she was still in contact with a guy she slept with before dating me, and they were talking sexually through facebook. Then her recent ex husband was saying sexual stuff as well. From there it only got worse Although I couldnt prove anything i saw the messages on facebook of them just talking about it, as well as another guy I had no idea about. This girl had alot of health issues that I would stay by her side for operations and whatnot until recovery. So after about a year I was in love with her regardless of all the issues and we got engaged. I was doing everything and anything for her. About 6 months later she dumped me after bringing up her still talking with these guys. I begged and was heart broken. I tried talking to her she ended up running over my foot throwing me down stairs ext.... I eventually left her alone and about 10 days later she text me. We end up having sex and getting back together. As time went on she still was sketchy and bitchy towards me so I told her I didnt want to commit to her anymore. She was devastated. We continued to date but nothing official and I was going on dating websites which destroyed her and she would beg for me to stop and be her bf. I stopped going on the sites as we continued to "date" unless we had a big fight. Id do it to piss her off. For the next three years she turned into a wonderful person doing anything and everything for me. Even quit smoking for me after smoking for 15 years. I had the I dont care attitude but showed her the love here and there. About 2 months ago i decided enough was enough and would consider making a real go at the relationship seriously. I was nicer but not needy still had that i dont care attitude but ALOT nicer. We did beyond things you could imagine sexually(and things she was petrified to do in the beginning.) and were getting along really well .We went to Maine together 2 weeks ago and she was all over me as I was her. She had to leave maine cause she just started a new job and could only get 2 days off. So when I came back she dumped me about 2 days later. Said she is not in love with me and we hurt each other too much... I told her I was going to propose which I was I had a ring and everything but that didnt matter. I begged and pleaded and she was even smoking again. She threatened to call the police if I didnt leave. After a while I left. Said Id rather die then go through pain without her she said go ahead and kill yourself then. I wrote her one last text and nothing. It has been a week and a half with no contact and I really want her back. What should I do.?????? We really clicked these last three years and I know that now....Please Help

It sounds like she's a greedy insecure girl who's now found another man. She finished with you suddenly after Maine - why ? Probably because she felt guilty about seeing another man. This may only be a temporary fling, so don't give up hope. Just contact her and say that you at least want to stay in contact and be friends. Hopefully, this will re-open the lines of communication, and then you'll have to wait, probably not for long because she'll soon want to try another man. Because you're still around you can step in at this point and restart your relationship. Once everything's up and running suggest counselling because this girl has some relationship issues and you really need to trust her before you commit to marriage. Good luck.