<human>: Can you provide a brief rundown of the text in within 3 sentences?

Not too long ago, my girlfriends cousin [16m, I'll call him Chris] was diagnosed with cerebral palsy. She's always been very close to her family, so this obviously caused her to become upset.
Last week she was meant to spend some time with him, but was called into work so wasn't able to. Normally, she picks him up from school, drives him home and stays over for a few hours. She couldn't pick him up so she contacted his dad, who said it was "No problem." and that was that.

She got a number of texts and calls the next day telling that that Chris had never made it home, that it was her fault, wasting his and Chris' time. She was at a uni open day, so all this happened in public, making her feel even worse. This ended in a full blown argument between both sides of the family, and ended with no contact between any of them.

She told me all this at the weekend, but since then we've hardly spoken. She always seems to be in a rush to leave whenever I stop by to see her. We both have work deadlines next week so I'm hoping that it's just stress related, but she's never acted like this before. I'm not sure how to go forward, seeing as there's nothing I can do about the situation.
<bot>: GF couldn't spend time with cousin, so uncle yelled over the phone and cut contact with her family. She's now avoiding talking to me.