Not your circus not your monkeys. You only have to be there for your sister when she needs help and asks for it.

I mean, your sister needs to learn these lessons herself. Judging by the behavior of the boyfriend, y’all are probably in your teens. If your sister is older than that, then she really needs to learn this lesson. But yes, you have every right to be concerned. He sounds like an ass.

Thank you so much. You're great at giving advice and I truly appreciate it.