I’ll try to keep this as short as possible

I’m 31 and my ex gf is 25, we dated on and off for 5 years . The last two years was mostly just off and on,, we fought for a lot and she was trying to find herself and trying out the dating scene and party scene..in that time she got a boob job and drastically changed after that . Started really getting into her looks and showing off her body  which wasn’t the case before.

In this time she was constantly seeing other guys and talking to other guys  even when we were together. I could never trust her and the relationship was very toxic . The thing is we have a business together that we both aren’t going to walk away from .

Finally two months ago she decided to end this thing permanently . I was devastated . I told her I loved her and wanted to make it work  which she didn’t want to .

So I started to move on and in that time I met someone who was the opposite of her . Loyal  trusting confident mature and happy with who she is and also very beautiful but quite modest . Doesn’t show off her body and is very high character . I was very happy with her for about a month .

Then a week or so ago my ex started to try and get in my head and tried to get me back . I didn’t want it and my ex cried and cried and said it was her biggest mistake and she hasnt met anyone like me  And is very jealous of the new girl .

This started messing with my head as I moved on pretty quick . So lately the new girl and I have been arguing a bit    as she has started being a bit bitchy which I don’t want . We’re working on things but the butterflies of the initial month have changed and I’m really upset about it  As she can see I’m acting differently as well .

So now I think about my ex and wonder if she could fix things . I don’t think I want my ex back but who knows and I don’t want to hurt the new girl .

I also say my mother left me when I was 11 and she was always in and out of my life and always gave and took love away . I think I’m used to being in dysfunctional relationships where I feel like I need to fix the girls . Most of my relationships have felt like this.

I’ve finally met a great girl who is nearly everything I was but I feel like I’m sabotaging it .

What do I do ? I feel really down and not sure what to do . I should be happy with this new girl but why at my feelings changing . I shouldn’t miss my ex but 5 years is a long time .. I will also say the sex was much better with my ex if that means anything . Im not usd to being with a girl who really likes me as I’m used to chasing girls .. There’s a lot of scattered around info here . Im hope someone can give me some insight .. Thanks