We split two years ago. He never took me off the family plan and neither of us has said a word about it since.
I did rename my profile to "Guest 2" though, in case he ever scrolls through who's watching and clocks that I'm still there. Small cowardice. Effective, I think.
I'm fully aware of how strange this is. I'm also not touching that account until he cancels it first. Whoever caves first loses, and I refuse to lose a breakup over a $15 subscription.