I really liked the fact that Henderson was friends with Clark. I imagine Clark has few real friends in this universe and Henderson strikes me as someone who could put aside the fact that Clark is also Superman to really see him as a person.
I'm less sure why Henderson told Lois who Mayson is, though, unless he saw how badly Lois felt.
Lois having to save Clark is not a twist I was expecting and I can't wait to see what happens from here. How long will Clark be effected by the k? I can definitely see his current weakness strenthening their friendship.