Is OTHER wrong in the post ? POST : Mobile formating apologies in advance.
I have been in a relationship with my girlfriend for about 1.5 years and we currently live together. She is mostly blind but has enough sight to get around without aid and can read with very strong magnification. I was told about all of this pre relationship and I have taken her to multiple surgeries and other medical appointments which have improved her health.
She is also a diabetic with poorly controlled sugars which is the reason for her poor sight and other medical problems.

I want to know if I would be an asshole for leaving the relationship due to large amounts of stress between the both of us. We are very argumentative but still  love each other (arguments aren't relating to medical issues). I just feel like I would be an asshole because she has difficulty with a lot of things and has no one else to rely on.

TL;DR my mostly blind, medically challanged girlfriend is a lot to deal with and I don't know if leaving makes me an asshole.