I want my roommate's boyfriend who's here 24/7 to chip in on utilities
Do you think you pay too much for utilities?
Yes I do, I need to cut back myself and he needs to chip in 100 bucks a month
It makes sense to expect help with the utilities. You should talk to your roommate and re-evaluate how the bills are split. This might lead to a more equitable solution for everyone.
My roommate has no say in this. He should pay no matter what.
I get your anger but you have to talk to your roommate about this anyway. Without them you won't be able to come up with a fair solution to the billing problem.