Proud can be a word.
Worried is usually the answer.
Sometimes it is delight
though often it is empathy
and resisting the temptation
to turn everything into a teachable moment.
Most times it is merely holding their hand
as they walk beside you
or cuddling them even if they are not sick.
Nowadays it is waiting for the door to open
as they come home
grateful they made it.
Saturn's Premier Poet 