Mark was the first out in tonight's Big Brother 2014 results, leaving against Chris R Wright, Christopher Hall, Pav Paul and Winston Showan.
Leaving to boos from the live audience, the former favourite to win reacted to host Emma Willis: "I knew I was going, it felt like the right time to go.
"I had such an amazing experience, but for the past few weeks I've been losing my head a bit, getting a bit swallowed up. There are people who are better finalists in there.
"It's been an amazing experience, nothing went wrong from me, it was such an amazing summer."
On the topic of Christopher, Mark said: "Oh no!"
He told Emma: "If I'm being honest, I don't know where it started to slip. It started so positive. I think the Strongest Housemate task it began to slip, when he couldn't defend me."
When asked if there was a prospect of a future for the pair, Mark added: "Me and Christopher have got a lot in common but we argue too much.
"The house is a strange environment, I'm not going to write him off but there's a lot of things I've got to consider and advice I've heard..."
Mark said that his exit would see the divide in the house get worse as he was friends with both sides, concluding that the last few days are "not going to be a nice week for them".
Chris, Christopher, Pav and Winston all remain in the house but one of them will also be kicked out later this evening.
What did you make of tonight's Big Brother results? Who do you want out next? Share your comments below!
BB continues nightly on Channel 5 with the final next Friday at 9PM on Channel 5.
Browse pictures of tonight' Big Brother results below...