Thank you. After this experience, I am sure he will want to get her spayed. He never wanted kittens in the first place, so I really don't understand it. Anyways, thanks for the replies. Any other suggestions would be great.

Should I leave her in the spare room all the time? Or only when my dad is at work... or what? We do have a spare bedroom. And about how much food should I be feeding her at this point?