The only thing that makes you look like less of a man is this sort of self conscious thinking. Besides, there’s a good chance that they’re saying that to make you feel better about yourself because they recognize people are often self conscious about stuttering. Maybe she genuinely thinks it’s cute. Either way, whatever she meant, she’s into you. Listen, I’ve fumbled the bag on plenty of girls, but a girl saying that she thinks your stutter is cute is almost always a sure sign. I don’t think I’ve ever fumbled when a girl said that, she might as well hire an air traffic controller to direct you right into her bed.