That. Is not the reaction he expected. He did not expect to be ranted at. It takes him a minute to get through all that, and push any feelings he has about that to the side (because there's a lot of complicated feelings there that he does not want to deal with right now, maybe ever), and finally settle on a "Steve you dumbass" look.

"I'm not avoiding you for two years. Like him." Maybe that will make his point clearer? Since this time he's actually articulating it with actual words instead of implications. He forgot how dumb Steve is sometimes, apparently. ( ... wait, when did he know Steve was dumb. Train-guy probably, ugh.)