Tubbo could tell you that Tommy and him have a brotherly relationship, they literally grown up together.
But since a lot of more origins start appearing they relationship kinda fall.
They weren't saying that Tommy was a bad friend, no, it was just that the avian being friendly as it was, have been spending time with everyone but it
And he feel left out, the only time they spend time together was when Tommy practice flying, when Tommy tries to get wings so aer can fly away from them, just as Phil does sometimes.
It don't want that. They don't want to lost their only time with Tommy.
So, here he is, on his way to practice with Tommy, maybe for the last time if Tommy is lucky enough...
Y'know I think I would finish my house, I kinda want to make some farm or redstone mechanisms, I just read a book about how to do automatic lamps and is awesome