My boyfriend said that this girl isn't THAT cute, what does it mean?

ohmigod.. just because he's going out with you doesnt mean hes not gonna find other girls attractive okaii?? he probably said she was ugly and gross because he didnt want to make u upset. when he said that she wasnt THAT cute he plainly meant that she was nice looking, but he wasnt attracted to her.. u shouldnt be so jealous.. :)