Sugaree, let me sum up what you've told us:

1. a kindly woman took you into her home to get you out of an abusive situation.
2. an unkindly woman is manipulating you to take her into your home so she can abuse you.

Stop trying to find parallels where there aren't any. If you let this woman stay, then your actions are a slap in the face to the woman who years ago took you in. She cared enough about you to remove you from an abusive situation; you care so little about yourself that you're bringing the abuse back in.

You're not giving back; you're going backwards.