mate.. I've been through this.

my ex wife cheated on me & spent all our money, wrecked the house & left me several times.

eventually I had to come to a point where I knew I wasn't going to take anymore, and that I KNEW she wasn't going to stop her cheating.

you need to come to that place too.

It was the hardest thing I've ever had to do, but I called some lawyers to see how I could get full custody before I made a move.
I made the necessary arrangements, told her to pack her bags & left her at her mothers.

2 years later we're divorced, I'm a solo father with full custody and have moved to a new town to start a new life.

I wish I had made the move sooner.... you haveto stop romanticising your love for her.
Love is a two way street, and if she wont walk the road with you then you need to show her she can't have her cake and eat it.

it's hard, but I look back with no regrets.
I know I did everythig i could for her & she treated me with disdain.