You may be able to tell her to give you the key,or you would destroy the lock.Or don't accept to put it back on.Do you think refusing to keep wearing it can put your relationship in danger?
If she's the only one enjoying the situation,it is not good,and should not be used.
But,for your main question,I don't think we can get used to wear a chastity device,especially reluctantly.We can manage it better,but not be used to it.
Anyway,it should be opened often enough,to be erect,to not damage the penis.
Angelina if your girlfriend still refuses, you should give her a choice. unlock your belt or separate (but this should be the last way)
Right,if it makes him unhappy and she doesn't care,he can doubt she truly love him.
Verrouille I was unlocked today, what a relief! just came back into belt now.
I think I have to stay quiet in the belt (no erotic ideas etc), it would be better then.
Or don't accept to put it back on.