She's upped and left [with other verbs as well]

[Theseus]

to do (something) suddenly, unexpectedly
--She upped and married someone
--She upped and left before I could think
Of all the reasons that she shouldn't ought to.:huh:

 

[Alexandra]

"Σηκώθηκε κι έφυγε", is the usual translation for "upped and left". As for marrying someone, we would say "πήγε και παντρεύτηκε".