Stuck in a room with a bomb of tears (B:1)

There's a little boy standing by the fence with a flag in his hand.
He's sad and confused; he doesn't understand.
He watches his daddy turn and head up on the bus.
He watches him go and doesn't even fuss.

Source: https://www.familyfriendpoems.com/poem/clutches
(7/22/22-??/??/??)