The newest castmember on the MTV show, Marty arrived on the scene during series 12 and it quickly emerged he had history with Chloe, having slept with her in the past.
And once he arrived, it was clear chemistry was still there...
They hooked up on his first night and grew close during the series (minus a couple of blips when he snogged Marnie and tried to get with Chantelle), leaving Chloe devastated when Marty made an early exit in the finale after receiving news from home.
But they were reunited on last night's Big Birthday Battle and who knows what will happen next?!
Speaking to The Sun, Chloe said things had gone well for them during the Birthday Battle filming and she was looking forward to series 13: "Me and Marty are in such a good place. We don't know what we want yet, so I'm excited to go back in next series and see what happens.
"It's confusing. We're not boyfriend and girlfriend. Maybe one day. We're exactly the same person. I've never got on so well with a lad in my life. He makes me laugh constantly, he's hilarious."
Meanwhile, on last night's first episode of Big Birthday Battle, the house was split into two teams - Team Gaz and Team Charlotte - and tasked with throwing the best party night in Newcastle. Gaz and Char got to choose their teams - poor Holly was picked last! - and then each threw a themed party night.
In the end, it was Charlotte's team who triumphed... though Gaz still ended the night on a high as he hooked up with Charlotte in the shag pad!
Geordie Shore: Big Birthday Battle continues Tuesday at 10pm on MTV