Why do you consider asking her to wear her ring a "favor".
In my opinion, I wouldnt necessarily call it controlling, but I think it isnt really the core issue. The issue is that it bothers you that she isnt wearing her ring. So frame it around YOU and not on what you want HER to do.
It bothers ME when... I get upset because...
Things like this she cant really argue with. You are expressing YOUR feelings and not just asking her to do an action.
