Tony watched his comrades fall like dominoes, one right after the other. Former or no, they were still his. Tony didn't dare let himself hope when Thanos seemed to linger on Steve Rogers--and flinched in his core when the man went down. The hopes and struggles of all people weren't created equal.

Turning his attention to Wanda, the sheer grief and panic wrought on her face reminded Tony of how young she really was. Taking down Vision clearly took every ounce of will left in her body. And Vision himself--that brought forth stabs of pain that Tony didn't know he could still feel in his state.