Fionna the human realizes.. she's a bro. someone that would never make a good girlfriend, never anything like that. so, she choses the only sane option here, trying to act more like a girl to get prince gumball's affection and attention. And what better person to help her out and tell her what guys like? Marshall lee, of course, her nonchalant and smooth best friend (next to cake) who gets a kick out of a few pranks every now and then. But is she doing this for no reason at all? Maybe, her acting this way was a complete waste, and who she really should have been going for... Was right in front of her. Someone who would just embrace the broness instead of pushing it away. (Fiolee.)