Change this paragraph with different wording:
He made fun of Willard Flemming, although he knew how much this hurt her, doubting very much that he had written two symphonies or knew anything about windmills, or that he could even ski.
He'd mocked Willard Flemming, knowing full well it hurt her, doubting the two symphonies Willard had written, knowing anything of windmills and the fact he knew any way of skiing.