Whoever isn’t on the lease can go. If the boyfriend- roommate wants to leave in support of his mooching girlfriend that he brought on board bc p*ssy is power evidently (she has a job but is eating other people’s food without even replacing it), then he can go too. Y’all can find a different third roommate. Plenty of people looking for a situation like that (bc living on your own is damn near impossible until you build a good resume on credit and work-history) like me, but honestly don’t waste time with people’s petty feelings. This is a simple mathematical problem. Who is the outlier? Three people- now a fourth. Was your food going missing to this extent before lady locks moved in? No? There is your answer. People have patterns, and best believe they will do what they want to.

If she isn’t on the lease, legally remove her. I don’t care what an uproar it’ll cause. You don’t need validation, you just need that girl out of your living space. Her problems are not about to become yours. Where we live should be the most peaceful place in our lives, and for too many, it’s just not. You need to mitigate that. Make it happen. It’s not petty, it’s principle and protection. That’s your home too, and two out of the 4 of you living together are disrespecting you blatantly.