Have you tried a break?

I’m 8 months post dday, and 2nd dday (he told me he wasn’t watching porn, but turns out he has a cheating/cuckimg porn addiction) was a few weeks ago. I’m not sure why I’m still with him. I don’t live with him or have kids, and I don’t know why I haven’t tried a break. Have you tried a break? If not, why haven’t you?(esp if you don’t have kids) Any advice is greatly appreciated, this year has been difficult beyond belief