do you think bitty ever looks at bob and he’s like. that’s what i have to look forward to amen *prayers hands emoji*
Theory about the ending: Jack was never meant to get "back to the past". He was meant to stay in the "future" (read: the present, as he sees it now) and defeat Aku to prevent a permanent, never-ending rule by "The Master of Masters". And thanks to his apparently immortal lifespan, he will become the benevolent ruler of all that Aku never was and never would be.