Well considering that this was a CBS show maybe the writers still have the mentality of the network and they think Supergirl is "too female", that is why they need the jock mentality of Mon-El.

You have to give it to the writers they are selling Mon-El pretty well to the girls, giving them the whole "He is an asshole but he will change for the love of his life", and subtly selling Kara as the mean girl who mistreat the poor guy when he is "learning to be better" for her, sometimes I wonder how these kind of…