I wouldn't really consider marrying a girl that can be plated. So if I'm looking for Mrs. Right and ask her if she's ok with FWB, and she says yes, that makes her out of the question for marriage.

Is this fair though? Because I don't really ask for FWB, I tell them "This is what I'm willing to do, cool?" but sometimes I meet a woman who I think MIGHT be marriage potential. Is asking these women to be a plate OK if it's in hopes she will decline?