Jury was still out on whether Captain America's terse press conference saying no, fingerprints didn't lie and he really was alive, not to mention nothing had happened he did not want to happen and he had no regrets about being Stark's husband had helped or not. Might have been a little more convincing if he'd managed a smile or maybe had called Tony something more sentimental than 'Mr. Stark.' But at least he hadn't blown the whole 'mouth shut if you get the hell out of my company' deal.