Tony Stark flies up into the wormhole, taking the nuke with him, and the world goes quiet. He hears his heart. The soft whirring of the Arc, reminding him that this was always going to be his legacy. But it also reassures him. If these are going to be his last moments, why not spend it with the one thing that has stayed with him through everything? Had created U and Butterfingers (Dum-E had been there through everything). Had created Iron Man, helped update JARVIS.
JARVIS.
I hope I made you proud. The thought echoes through his helmet. Maybe even Yinsen hears.
He is almost comforted. Space is quiet, he likes that. No one yelling at him, no villains taunting him, no Board of Directors calling out his every fault. Just him and the soft whirring and the stars.
He can accept that.
Tony Stark's eyes close. He no longer hears his heart.
The stars blink sadly at him as he falls.