It follows Ben admitting his crush on Roxanne, this time in front of her.
This week, housemates have been completeing all sorts of challenges for the latest shopping task.
They are taking on the 'Public Eye - a giant walking eyeball - which has asked them to do everything from stand up to a dance battle.
In the house on Sunday, housemates faced their next challenge: A confession booth.
First into the booth was Ben who confessed his feelings for Roxanne. "I might have a crush but I've got to be honest. I can't help it though, she's a nice girl. I've got a little bit of a crush on Rox," he said.
After Ben left the booth, Roxanne was keen to know what was said.
“Right, Jermaine find out what he said about his confession about the house," she asked Jermaine.
"I can’t believe you wouldn’t tell me. Benny, how could you tell him [Jermaine] and not me?” Roxanne nagged.
As the pair washed up together and messed around, Ben teased: “Don’t you worry about that girl, just get that washed for me girl.”
But she continued: “You have to tell me now, I’ll have a nose bleed if you don’t tell me now.”
Eventually, Ben confessed all to Roxanne in the storeroom.
"My head right now is like marshmallows, especially after that," Roxanne reacted.
Earlier in the day, Roxanne had confessed: "I'm finding it hard to remember my life outside. I'm struggling to remember Lee's [my fiancé] voice."
She later kissed her engagement ring and told herself: "You're still my boyfriend."
The pair's flirtation comes just as a new interview featuring Roxanne is released where she discusses her fiancé.
Speaking to The Sun newspaper before entering the house, Roxanne talks about her love life saying how sex keeps her fit.
"Honestly, I'm too lazy to sweat it out for hours when I could work out with Lee [Roxanne's boyfriend] instead," she comments. "Sex and shopping keep me in shape. My attention span wouldn't last long on a treadmill anyway. Give me time with Lee over that any day."
Celebrity Big Brother 2018 continues nightly on Channel 5.