UK women, if someone asks her male flatmate if her top is too revealing before she goes to work as a barmaid does it mean a) she fancies him and wants

Likely just wants to know how she looks.

Think of your roommate situations as a sister. They are like family.

Been in that situation many times when I was far younger.

Definitely A

Perhaps she wants to know.

Probably wants his money.

Does she ask if her bum looks big?