The Scottish singer, 20, was in the bottom three for a second week in a row and, for a second time, viewers via the app flash vote saved him.
Speaking on The Xtra Factor afterwards, girlfriend Emily, 18, who was safely through to week four, said she'd been waiting for the result backstage.
"When the results come, I have so many mixed emotions. When they shout my name out, I'm thinking about him as well."
Emily agreed with Rylan Clark-Neal's suggestion that she and Ryan are almost "one contestant", saying: "It is because waiting backstage to hear the lifeline vote is horrible. You just want his name to be shouted out. I feel like it's me as well because we are one person."
Ryan admitted on the show he thought his time on X Factor was up and he really didn't think he'd be saved for a second time.
"I wasn't expecting [to be saved] in the slightest. I thought I was going home. I just want to say a massive thank you to every person at home who managed to keep me here another week."
As for what he'll bring to the Halloween show next week, he said: "It's Fright Night so I just want to do something very interesting and try to get my personality across even more."
Meanwhile, much has been made of what will happen if Ryan and Emily ever end up in the bottom two together. They've insisted it won't be a problem and they'll fully support each other.
"These things happen," said Emily. "It's not the end of the world. We still have lots of years left in our lives. We're young! It's a competition. It's just setting a platform for us. It's the start. After this competition, when we go into the music industry, that will be tougher than just a sing off.
"Whatever happens, happens. It would be nice for either of us to go far in the competition."
Ryan echoed that when he added: "We have discussed it but we're really supportive of each other and whatever happens, happens. Whoever goes or stays, we support each other."
X Factor continues Saturday at 8pm on ITV.