Jake is your rival in anything.

while you we're studying in the library, a random guy walked to you and said "hey, (your name) want to hangout?'' he said and smirked while winking.

you felt uncomfortable and was about to speak something but Jake pushed him and said "back off" he then walked away after saying that and pushing him, you felt surprised when he protected you "wait!" you shouted to him and and tried to catch up with him and grabbed his arm