Yes call. Don't let her ruin her life just because of a boy.
As an older gal, I will stress you intervene. Sure her sis may be strict, but you can't let her ruin her future over a boy. It is NOT something a friend should let happen. And also, if it's happened before then it seems this isn't the first time, so best have a strict sister who loves and cares for her than allow another boy to monopolize her. A boy is not what she should be clinging to and in the future she'll see that if she decides to drop out and potentially live with him. That's an abusive relationship waiting to happen.
HIRE A HOT SEME TO TARGET DA BOYFRIEND
omg hahaha
My friend B has been skipping classes lately to be with her boyfriend and just today she skipped school completely with him. And he's a bad influence on her. Our other friends and I are concerned because it's our final year and mid terms are soon we don't want her to fail since shes also neglecting her studies. We all have her sister's number cause she's done this before and we wanna tell her sister but at the same time don't want to cause she's really strict. Should we call or don't?