The barber arrived on the beach last night as Gina's ex - and in a cruel twist, the Tablet of Terror told Gina she had to choose between Alex and another ex, Joe Delaney: one could stay, one had to go home.
She chose to save Alex... which backfired.
Despite promising to have her back, Alex turned on her in the villa, declaring he had no interest in her at all. Gina also felt the wrath of other housemates sad to see Joe go.
Explaining his actions, Alex said: "I had to make Gina feel like I liked her to keep me in the villa but in the back of my mind I knew I never had no feelings for her whatsoever. I was absolutely made up when she picked me over Joe, I was thinking, yes! As soon as I get to the villa, Gina, go, and I'll get on the girls."
He added: "As soon as I was in the villa I thought I had to put Gina right in her place so I told everyone I'm not bothered about her and have no feelings for her whatsoever. She wasn't happy at all."
Well, no, she wouldn't be, would she?!
Ex On The Beach series 4 concludes Tuesday at 10pm on MTV