Is AUTHOR wrong in the post ? POST : I'm just making this account to ask this after seeing a few videos about this subreddit, 
I struggle quite severely with depression, on top of that i have quite a busy life, I'm a student, I work, I have a sister I sometimes have to care for as I live in a single parent household. I want to preface this by saying that I love my girlfriend, she's not a bad person but she does suffer from borderline personality disorder. Basically, she reacts to things very extremely and she has abandonment issues, so sometimes it can be hard to tell if what I've done is my fault or simply her overreacting. I've missed a lot of plans with her due to things coming up and needing to take care of my sister which though it upsets her a lot she is understanding and tries her best not to get upset at me because she knows i couldn't do anything about it. So, when I do have time for her she really, really looks forward to it, I have missed a lot more plans with her due to my depression, whether it's being unable to get out of bed that day or falling asleep. Once I missed five plans all right after the other with her  and i felt terrible because she had a sort of episode and was convinced i hate her, she cried, said she hates me and that I'm horrible to her, when she calmed down she said to me she can understand it happening occasionally but how frequently i do it is a problem as she can't trust me or rely on me for anything and i should make more of an effort for her or at least try to tell her more often. once something came up and I'd be showing up late, I didn't tell her that I'd be getting there late and eventually after stopping at home before making my way to her i fell asleep, she was enraged by it, she cried, called me a cunt and an asshole and ignored my texts for the next day. Am I being an asshole to her and using depression as an excuse or is she overreacting?