I think he is. I mean, I don't know what else he might remember from other versions of Clark. It's possible he remembers all the realities, just like yours.
I feel a little weird describing him as 'mine' or 'yours.' He's just... Clark. And Superman. I'll be honest with him about everything and see what happens. I don't... know what's going to happen. Frankly I don't want to get my hopes up. And I don't want things to be awkward with us.