“No, they’re just - old friends.”
Emma: You know why he went in there in the first place don’t you? Because you made him feel like he had something to prove.
Regina: Why does he think he has something to prove? You’re encouraging him!
Emma: Do not put this on me.
Regina: Oh please, lecture me until his oxygen runs out!
Yeah, they’re totally coparenting. Note how Regina becomes overly emotional and gets the last word in order to cover the fact that it is actually her fault. I’m sure hatesex will follow soon.