Maybe you can't evict her but you could lock your pantry. Treat her as a roommate. I normally say the mailman but you wouldn't have the mailman in the house with you. The point is the same be cordial but think to yourself...Would I be doing x,y or z for the mailman? If the answer is no well there you go. She isn't the person you married right now...quit expecting her to be.
Sorry if I am off base here but I have only read the most recent thread.
kat
Me-53(and learning!) S24, S21, D18, D17 Just keep swimming, Just keep swimming. Dory