[It only takes a second for Robert to respond - slow reflexes or not - and he holds Don almost fiercely, willing himself to be some kind of anchor for his partner. He doesn't even realize that he's whispering how much he loves Don and that things are going to be alright, at first; he just holds him and lets him cry (I've never seen him cry like this before...).
[Action]
He's glad that he's here, too.]