my son misses me every day

My son misses me every day, and I miss him too
he wants to wake up with me next to him
he wants me to drop him at school and pick him up
he wants me to draw with him, colour with him, build with him
he wants me in the pool with him, teaching him to swim - "aatha it's fun!"

and what I am doing
not doing all this?

I put my daughter to bed
I walk my daughter to school

but him,
what am I doing
not doing all this