I [F22] am watching my brother [M16] for five weeks while my mother goes abroad on vacation with her bf. Initially she was going to have him stay by himself the whole time, but I told her she couldn't do that because 1) he's still a kid and b) he has autism. Granted he has low support needs but you still need to remind him to clean up after himself and make sure he eats stuff other than top ramen.

She countered having someone come for two weeks, but I told her that was still too long. I’ve always been guiding her on how to be a parent and taking over for her, even so far as going to a parent teacher conference for my brother when I was fourteen. I offered to have him come stay with me but she declined since he had summer school and work.

She asked me if I could come and I told her I couldn’t just leave my job for an entire month as I’m a nanny and don’t have PTO. I compromised and told her if she paid my half of rent ($1000) I would ask to take an unpaid leave which I was lucky to my boss saying yes.

Fast forward and right before she leaves we were supposed to get groceries but we didn’t have time, so she told me she would pay me back. I said okay and things were fine. Today, I went grocery shopping and spent $145. I tried to be frugal and get stuff on clearance/sale to make it a little easier for her.

I called her and asked her to reimburse me but she got annoyed and changed the subject. She asked how much was my brother working, which I didn’t see the point as he’s the child; he’s entitled to free food. She ended the call saying she would pay me, but an hour went by so I sent her a request for money to which she’s still ignoring. Im debating if it’s worth the effort bc she’s usually really hard to get to pay back money, she’ll even get upset and start whining which makes me feel guilty but still.

A part of me does wonder tho if I’m being an AH bc I am an adult and would have to pay for groceries anyways so I should just take the responsibility, but on the flip side I’m moving when I go back home and wasn’t trying to deplete my savings especially since I gave up a month of income ($2000). AITAH here?