I'm still having trouble trying to figure out the story line - or lack thereof.
He supposedly hasn't seen or had contact with his sister for years, yet she has his phone number and knows where he lives.
Apparently, he was taken in by his aunt for some unknown reason, supposedly to protect him from their mother, yet she didn't take his sister to protect her as well??
His sister tells him that their dad is in the hospital, yet she didn't know about it until the hospital contacted her directly. Then she acts surprised when she sees what shape their dad is in... didn't they live in the same house???
She stays a second night with the MC, as if she's trying to stay away from home, then immediately leaves to go back home.
He goes to have a talk with their mother, yet hardly speaks to her. Then, for some unknown reason, he spends the night there.
I'm totally confused.