..Tony and Steve have been in contact all along before IW, like right after CW and mostly during Homecoming (hence considered for the guest list at Tony’s NBA party) but they still working out their feelings so they meet regularly at different parts of the world (hence why Tony was always busy). During a fight when Steve hints at raising a kid Tony asks him to come home but Steve still disagrees with the Accords, things get ugly and Tony wanting stability gets engaged [poor Pep, collateral damage] and more angst then BOOM Tony wanted a baby suggested it to Pepper and she HESITATED. Tony then rmbrs how easily Steve despite everything genuinely wanted a family w Tony. Cue post IW dusting scene and reunion of Stony