@Ryomi
Because you guys think this with using western logic.
In asia countries, most people see this as other family's own problem and won't involved until things really getting bad. some slaps are just like reasonable educate to others eyes considering her runaway.
@pomfkatze
It needs, he still biological a guy and doesn't identify himself as a girl "yet" so "no homo" is still needed, unless you are like screw it I'm gay.
@Deimochi
She will abandons him once he's not cute and not suit dresses I'm sure.
I don't think she loves or likes him, she most likely just enjoys the pleasant of dominance.