3 year relationship over

I met this girl about 4 years ago we started dating a year later she moved in with her kids I knew she had been through a lot and did not have much when we met. But I really liked her we got a lot great I'm the type of guy I treat everyone the same but I live a normal life have a good job always have I knew taking her and the kids on would be a lot. She did not work once she moved in which was fine I wanted her to stay here any how. Well about a year ago we started have problems just always fighting about stupid stuff we was a normal family always done stuff with the kids we never was the wild type she was before we met she explained all that to me from the start but said she wanted a normal life now she was tired of all the wild life. the whole time she lived here she was not wild going out nothing like that. I'm 42 she is 30 my oldest child is 18 he still lives here but works and has school this whole time I've been supporting her and her kids whatever they wanted I do have a great job and make plenty to support money is not a problem I do live in a very nice place my point is they never really lived as they did with me they never really had much but seemed happy when we met. she does have three kids 8 10 11 from three different dads one of the dads has custody of the 8yo daughter the other two lived with us which they don't see their dads don't even really talk and she gets no support for these two. When all the fighting started she would leave and go stay with her dad which lives in the same town as us she ended up moving in with him for three months telling me we was going to go see a counselor which we never did this whole time I was still paying all of her bills supporting them dad does not have to much either. Well about two weeks ago she tells me its over and that we was no longer going to date no reason nothing I found out she's seeing a guy that lives nothing like what we lived here if you know what I mean started staying with him off and on with in a few days of breaking up with me. The last two months while I was supporting them she was transferring tons of money into her acct and she want even answer where it was going. This has really hurt me bad I really did love her with all my heart and now its all over I did beg her for the last two weeks to lets try and work something out and she want really even respond I don't know what else to do it still hurts me.

You did say she lived a wild life and without judging her, 3 kids to 3 different men says it all. Just because she gets no support from the fathers of her kids doesn't mean you have to do it. Im sorry, but at 42, you should know that you should choose a partner who shares your values and standards. It obvious that she did not. You come across as a decent guy and you need a woman who respects you for who you are. It's easy to say but forget about her and move on.