Vara is probably doing a 'bully someone I like trope' bruhh are you a kid?

Not probably.. it is what he is doing. If you read the earlier chapters.. Ennid tells his school bully which is Vara

And Glunn had already noticed the pattern concluded that Vara is acting like a kid and a coward

Yep... that's the case.... I have read the novel and it's said there, he is in love with Ennid....and honestly when the story progresses, you will see varabish is doing all this shit to save Ennid (according to him)#－.－)