When Luke reads his email from Arizona State, he trails off after saying, "We regret to inform you..." and closes the laptop. Haley chimes in, "Well don't leave us in suspense!" This is a callback to the episode 'Election Day' when Alex reads Haley's rejection letter. Again, when Alex stops after "we regret to inform you...", Haley exlaims, "Well don't leave me hanging!" Also judging by his expression it is implied to be a rejection letter.