I left my ex about 18 months ago.
He was paying £140 a month. But about a year ago I told him to stop so he puts it into an isa for our son.
I know that was such a stupid thing to do and now I really really regret it. I told him to stop because he it was something he could use against me he used to say he was "funding my lifestyle" and would tell me I had to buy our son better clothes.
I also felt guilty because I left him and he never wanted a child so I guess I did it appease my guilt.
I left him because I was so unhappy. I knew he wouldn't leave our property so I had to leave. I pay all childcare and my rent is more than the mortgage we had (I stopped paying the mortgage)
Now I'm really struggling financially and feel like an idiot for telling him I didn't want the money. He still goes on at me all the time anyway and I still feel guilty all the time so it hasn't even helped with that.