My ex played away while I was on shift work, with the boyfriend of her best friend.
I let it go to court, where I said I would pay maintenance for both boys until they left school, but I would not support the ex financially, as she was the reason we were here in the first place, and the judge actually agreed to rhat. He house was rented with joint tenancy, so I signed it over to her, and that was that.
The ex did try and get more money out of me after I changed my job, and when that didn't work she got the DSA? involved. They came to my workplace to see me, As I spent more time there than at home, and the ex had told them I was not making regular maintenance payments. After showing them that money went straight out of my bank into the court appointed account for both boys every week, and on time, they decided no further action was needed. I bet the ex got a rollicking for wasting their time