Lindsey Pelas had been dating Calum in the states last year but their relationship status right now seems unclear.
"We went on dates practically every other night," recalled Lindsey this week. "It was all going well but then he had to head back to the UK to get locked up in the CBB house."
She explained: "We say that we're dating but it's a weird situation because of the show.
"He can't be in a full-time committed relationship and I get that but I'm not dating anyone else."
Speaking to OK! magazine (via the Daily Star), Lindsey admitted to being left "jealous" by Calum's flirting in the house.
“I don’t want to see someone I like flirting with other people so I watch clips on Twitter rather than full episodes," she revealed.
"I saw a clip of Jasmine kissing him on the lips but out of context," Lindsey continued. "I was like: 'I hate that,' I just wanted to vomit but later a looked closer and realised his eyes were open and I relaxed a little bit."
Rumour has it that Lindsey will be paying a visit to the Celebrity Big Brother house this week as part of a new task, which will also reportedly see Bianca Gascoigne's boyfriend enter the house.
For now, Celebrity Big Brother is back tonight at 9PM on Channel 5.