She is definitely not fine in more ways than one, but he's not about to point that out. Her tone alone makes it very clear, the up and down inflections in one simple word.

Trying to reason with someone on the first anniversary of their Hunger Games victory when they want to steep in the anger is pointless. He wants to, because there is something about Jyn that makes him want to both reassure and counteract, but fortunately self restraint is one of his strong points.

Maybe next time they speak they can be clearer. Both of them more sober. Though that's never a guarantee.

"Take care, Jyn." Take the couch, he's not about to stick around much longer either.