Kirsten, I would never allow anyone that was in my home to abuse my cats. I would react the very same way if it was a child.

Yes, you are going to do a guilt trip on yourself now.........but you shouldn't.

Your stepfather has been unkind to Lily before and you made it clear then that it was not acceptable.

It still is unacceptable. Maybe now, that you have totally lost it with him, your point may have gotten across.

As for your Mom - well, you are her daughter...........and I think in time she will come around. Perhaps you have her visit you alone without your stepfather.

They need to respect your living space and your wishes.

I would have done the same thing that you did.......enough is enough!