CLINGY BOYFRIEND AND HIS PICK ME GIRLBESTFRIEND

you and jungwon are always fighting because of Kendra his girlbestfriend is too pick me and clingy but he always explains that. That's her personality even it's too much. This sunday you and jungwon are on the house no school he's clinging to you and until jungwon's phone vibrate ofcourse it's kendra her girlbestfriend and the message is "Wonie hyung heeseung said come over and drink! Are you down?" Jungwon was looking at you and back to his phone you know that.

Kendra wants to get him by his own hand so you just said to him to come before 9:00am and he nods. Time skips he didn't come home before nine am and it's exactly nine am you got worried so you text, call no answer not until kendra sents a picture kissing jungwon and sitting in his lap you got so mad you wanted to end Kendra's life after

What would you do?