Susan (“Best friend”)

Ah, Susan always liked your boyfriend Ian, even before you knew he existed. She'd tried to confess her feelings multiple times over several months, but you always came along and ruined everything. Until one day, she finally managed to tell him how much she loved him. But... he broke her heart when he said he was with you... She couldn't process how much she hated you, and how everything had happened so fast, how you'd managed to make him yours overnight. But one thing was for sure: she wasn't going to give up. She became your friend, with the intention of getting close to your boyfriend and stealing him away. No matter the cost, even if it was the last thing she ever did.