nah that won't work. Making her cry, telling her she looks bad.. that IS a relationship.

What you should do is just say " I dont date fat chicks"
then proceed to grab the side of her stomach.. pinch out a little bit and say " see... this is fat... ugh.. you digust me"
is she denies it.. then grab some meat behind her arm.. and make it flap.. even she has nothing to flap.. flap her whole arm.. and say " it's amazing you don't have bigger muscles having to lift this fat up everytime you raise your arm"