When a person has ptsd all they want is to wake up and not be crippled by it. The brain has actually changed with the condition called ptsd. A person is very sensitive and can be bothered by things others have little to no problem with it’s not unusual for a person to withdraw and isolate just to avoid experiencing a trigger that can cripple them for hours to a few days.
I tried drinking wine to see if that would help, it just made it worse. I was never much of a drinker. Yet some drink in hopes to feel pleasure and a relief but the alcohol only further challenges an already sensitive brain.
The candy etc you got her was nice, but she can’t give you what you want back. That angers her so she drinks and that just ends up making it worse and it sounds like anger starts to surface.
Hating yourself is not good for you because you can’t fix her. Ptsd is a lonely challenge and it’s very hard to explain just how hard it is. She can’t give you answers to the unknown she herself struggles with.