Responses
her brother is hooking up with his sister's boyfriend behind her back knowing the two are still dating, and his sister has been the one taking care of and supporting him this whole time on top of that. the bro is just as guilty as the others are.
are usually two types, supportive friends or nuisances. This one here is a nuisance and even if she was used by the one to get close to the other, she is still a nuisance. Honestly, she can create a scene with the seme and drag everything out with him, since he was the one created this situation, but I just hope that she won't hurt her brother.