Disclaimer: Wilson is not mine. Sadly for Wilson he's not House's either.
Wilson had long ago given up being heterosexual, bi-sexual and actually homosexual as well.
Three failed marriages later and yet Wilson was still trying to deny that he wanted House.
Oh sure, he was fond of him, even thought the older doctor may at times care about him, but right now he just damn well wanted him.
He wanted House's calloused hands running along his skin. He wanted the other man's tongue in his mouth. He wanted to wrap himself up in House until he climaxed with ecstasy.
The problem, it would appear, was that Wilson was House-sexual.