you and your boyfriend Drei had a heated argument last night which made you guys ignore each other

your bestfriend invited you to a basketball match with her brother

you knew that Drei is playing on that basketball match too, yet you agreed to come

You and Kein(your best friend's brother) talked a lot and became friends

You decided to look at Drei, but you were a bit shocked to see him already glaring at you and kein furiously

Is he..jealous..?