She reminds me of myself, where hurts of a few people have accumulated and hence I disposed some of them out of my life, and I may even dispose more. It's a matter of swinging the darts away from your mind at the moment they're about to hit, such as saying "I don't like it when you insult me that way".

She does sound depressed, though at least she spends her time well at home.
How about sympathizing and showing her you know how it feels so she can know you have similar "wave lengths"?