He doesn't know what's happened, but he's fallen head over heels for the werewolf. He wants you to be his, forever. He wants you to be his little pet. So of course the only "logical" thing to do is, well- kidnap you.

"Oh? You're finally awake!~" You hear him say as you slowly regain consciousness. You find you're lying on his bed, while he sits calmly beside you with a small smile on his face. He seems to at least be... "calm."