Years ago my mother did something that for me severed the bond of mother and daughter.Our relationship over the years has been polite but not close.However,now she has had to move in with me,I am only doing this out of a sense of duty.I have tried not to feel the way I do but I am losing.My day basically consists of doing the things that need to be done for her and otherwise I just live in my bedroom.I am eating myself to death.Things I used to enjoy no longer interest me.Basically she has the run of my whole house.If I hear her outside her bedroom I hide in mine.This is no way to live.To me there is no talking this out.She did what she did.I know the past can't be rewritten but nothing I say or do is going to change this narcissistic passive-aggressive person now living in my house.I can't get past what she did because it just revealed what kind of person she is.
None of us knows the whole story here, and texarkana's mother might have done something *really* bad, something that any one of us would find difficult to forgive under ANY circumstances. And anyway, forgiveness or not, texarkana's mother is still in the house and still causing problems. Let's focus on solving that.
Being responsible for another person's well being is difficult enough without the added weight of past hurt and pain.
No doubt she'll try to fight you and there will be ugly scenes and all that. Prepare yourself for it but stand your ground. Frankly, if she's well enough to take over your house, she's well enough to organize her affairs and live not-with-you.
Stay strong!