[ tony talks. peggy, for her part, is trying rather hard to listen. it's not often that she finds her powers of perception so crowded out of her own head -- but today it proves a struggle. her eyes meet his eyes, she tightens her hold on the mug, and starts talking before she starts thinking: ]

It was him. [ she breathes out the admission. ] Barnes. That's who Steve was so embroiled with, last time, that...

[ she'd told bits and pieces to tony, already. the fact that steve had found romance elsewhere. and deep down she knows she shouldn't be telling him this piece at all. it'll only make a strained peace all the more tenuous. ]

If he shows up again -- I can't promise I won't break his nose.

[ not quite as dire as what tony suggests, maybe, but there's a telling pained edge to it. and a mild censure, too, that tony should know better than to even imply death. ]