Whose the blond lady?

It’s actually a blond dude. He is a friend of the boyfriend and might be into him. He was suspicious of the boyfriend suddenly getting with the sister after saying he wasn’t interested in anyone

Yeah, he was talking about the creepy sister, not the blond dude and I have a feeling she's trying to expose them to gain favor with mommy and daddy because he was always the favorite and she always had to cover for him or some shit like that. I dunno tho. she crazy bro.