I was getting a bit confused in my enthusiasm (indeed the other day I was talking to someone about the EU ref and kept saying, "Brexit" when I meant "Remainers"; I knew what I meant and, thankfully, so did the person I was talking to). Michael Gove backed May, iirc and thought he would have a prominent position in her government; it seemed so but didn't last long!
The de Pfeffel name suits Boris but I don't think de Pfeffel is his alter ego. He is what he is regardless of ancestry. To quote his rich Russian friend: "Boris is not a man of intrigue. Boris is very loyal."
He's like Marmite, really.