The scene I remember is Steve watching a video message an old soldier sent (Bruce and Tony had showed it him, part of the fan mail/videos people make for them.) Steve visited the hospital ward the guy was in as Captain America, back in the war after he'd been injured, and the guy in the vid had just bust up with his boyfriend and didn't want to talk to some prat in a spangly outfit. Steve came back later, as himself, to talk to him and the bit about his partner came out and Steve told him he had terrible taste in men and that it'd get better. He'd planned to kill himself, rather than be wounded and sent back to an empty life but that stopped him. Watching the vid, Steve comments remembering him, thinking the guy had thought him crazy at first then says 'I told him he had shit taste in men and he was shocked I swore'
Never mind, found it!