Honestly, if the girls are rooming with him and using up most of his food and water, then yeah, they better damn well pay something, especially since they barged in his living space in the first place. Only way such thing is somewhat okay is if one of them marries him, but none of them are obviously into that.
Also annoying how they keep flip-flopping the do's and don'ts in the place just so they could mess with MC, especially after they know how self-conscious he is of his (lack of) masculinity.