Sorry G2B I do not buy it either; your mother is softening you up to do something really nasty to you in future. You may feel sorry for her due mainly to being conditioned (she thinks sucker) but she certainly does not feel sorry for inflicting herself on you.
Narcissists not only don't recognize the feelings and autonomy of others, they don't recognize their own feelings as their own. Their feelings are sort of like the weather, atmospheric, acts of God. The narcissistic think that everyone's having the same feeling as they are. This means that usually their own pain means nothing to them beyond the physical discomfort it has no affective component. When they do get some painful affect, they think that God is punishing them they think that their trivial errors are worth God's specific attention to their punishment. If you try to straighten them out, by telling them that your feelings are different, beware: their idea of sharing their feelings is to do or say something that makes you feel the way they're feeling and, as they make a point of not sharing anything desirable, you can expect something really nasty. The sad fact seems to be that narcissists feel just as bad about themselves as they make others feel about them.
Narcissists are noted for their negative, pessimistic, cynical, or gloomy outlook on life. Sarcasm seems to be a narcissistic specialty, not to mention spite. Lacking love and pleasure, they don't have a good reason for anything they do and they think everyone else is just like them, except they're honest and the rest of us are hypocrites. Nothing real is ever perfect enough to satisfy them, so are they are constantly complaining and criticizing -- to the point of verbal abuse and insult.
Given the above two paragraphs it is not at all surprising to me that she has never made a go of life there because she sees you as an extension of her.
The lines between the two of you are pretty much non existent; now she's using you almost as an unpaid therapist and you sadly are allowing her to do this to you. She really did train you well.