I suppose it's both.

[ she's one of the only ones who know both one and the other. tony's iron man persona is more at work with everyone else. the man behind the armor is much more vulnerable and much more aware of his flaws. he likes to keep this side of him hidden away.

but then, he doesn't have many secrets left when it comes to peggy. ]

No, you had a few. I was forced into all of them, by the way. I think I was nine in one of them.

[ he's not even kidding. ]