Bf freind jealous

Intro oh hi again guys,for starters, the boy in the middle is your bf, the girl with gray kinda silver hair is your bf freind and she I jealous of you, the girl with the blonde hair is you, her name is Mina, yours: optional, your bf: jack she is jealous when your bf spends more time with you but when he spends more time with her she brags to you abt it. so what would you do? try to convince him Mina is lying and wants attention or? just take the yell? btw he probably breaks up with you so...