Captain Rex: Commander. You got old.
Ahsoka Tano: Had to happen sometime, Rex. (hugs him)
Captain Rex: I’m glad you’re still alive.
Ahsoka Tano: You too.
This quote comes from a TV series Star Wars Rebels. The scene where this moment comes from is in Season 2 Episode 4, with the title of ‘Relics of the Old Republic’ (2×04). The show is a part of the Star Wars Universe. | Star Wars Rebels is produced by Lucasfilm
Plot context explained: Ahsoka and Rex reunited – This is the moment when Ahsoka and Rex are reunited after getting separated.
They both went into hiding after the Order 66 went into effect and they escaped together. They eventually faked their deaths and went separate ways as they had different missions in mind, and it was easier to not raise suspission than they would staying together.