Yeah I don't get people's interpretation of that scene at all. He goes to make sure House is ok, he's upset. What do people expect? He can't deal with his grief and House at the same time.
Fandom is ridiculous. House stubs his toe and there's wailing of 'oh poor House'. Wilson's girlfriend dies suddenly and in extremely tragic circumstances and he's not allowed to be upset enough to lose perspective, to be angry? Beggars belief!