Something is wrong with her. I think you might look into some joint counseling, if you intend to have her live with you. I can barely remember 22, and, certainly not the death of my father factored in. While I understand how frustrating this must be for you, and, you lost your brother, too, if somehow you can relate to what she obviously has not had during her lifetime (it doesn't sound like someone ever gave her a guiding hand in life), it might get better.

And, wherever did you buy contact solution for $22? Mine costs about $3! He he he.