that's up for debate... but his body language says that even though he knows he lost everything he'd do it again and isn't THAT psychologically fucked yet. Basically the self-doubt hasn't crept in; so yes... he absolutely was chilling in the Soul World after his victory; which, if anything, was interrupted by child Gamora.
Think of his victory as more of a Silver Lining. He won; saved the universe; proved he could make the ultimate sacrifice and goes to live happily ever after.
Chill? There was the child Gamora. He actually loved her. Could he chill WITH HER after sacrificing her?
Think of his victory as more of a Silver Lining. He won; saved the universe; proved he could make the ultimate sacrifice and goes to live happily ever after.
I mean... That's exactly what the fuck he did.