I'm so glad she found a kindred spirit, heartbreaking that girl got stood up BC the guy wasn't even polite enough to say to her she wasn't what he expected and he's sorry for that.
I have sadly heard that happens a lot with folks, but especially women who aren't conventionally attractive. (Also disabled people, god people are jerks).
Poor kid is trying her best though, wish her older sister had hired a part time adult carer to help out with grandma and mum. There's no way that she should've left her then 14-15 yo sister and elderly grandma to care for mum...and then left her with both when grandma got too unwell too.
At least MC seems like she's going to become a potential safety net for the poor kid. Like esp since what happens to her family members if there's ever a date she NEEDS to be away from home or is herself unable to do anything (like idk suddenly appendicitis). Short notice care in that case would be super necessary.