Yeeeeeah =/ Mako was the hard one for a reason and I had to make a tough call about what he was going to say. But he's a dumb teenager who cares about Asami, so not everything is going to make much sense. I mean, him wanting Korra all of a sudden after Bolin and her were hitting it off didn't exactly make much sense either. He was a self-absorbed idiot who thought she was only doing it to get to him. So, it's probably cliche of Mako to resort to that, but all he can do now is prove that he can be the man he wants to be for Asami and himself. He had a great thing with her and he threw it away.