Clark was able x-ray Lioli? Hmmm... Either his powers were coming back the whole time and Clark was just suppressing them or there's stuff in the village to prevent them from returning. He might be able to explain away the hippo by saying it was an adrenaline rush (which it sounds like it might have been) but not his reassuring Lois that Lioli would be fine.

So he's going to tell her all? Good. Regardless of what happens next, this secret will no longer be between them.

CLARK: No. I'm just worried I'm a jinx.
JONATHAN: A jinx?
CLARK: Yeah. Let's face it, ever since she's known me, Lois's been kidnapped, frozen, pushed off buildings, almost stabbed, poisoned, buried alive and who knows what else, and it's all because of me.
-"Contact" (You're not her jinx, you're her blessing.)