run out on

verb2

1. •
   To leave a partner or commitment suddenly and without prior warning.

   • Vinton's former wife, Mitzi, ran out on him. Naomi had four previous marriages, to Tom, Bill, Leonard and George. — 2011
2. •
   To leave a restaurant without paying the bill; to dine and dash.

   • I saw him run out on the check at an Applebee's.