Tom O'Connell and Faye Palmer both complained that they felt "used" by the 30-year-old contract manager during a heated discussion on day 17 of the competition.
Faye recalled: "The other day, [Aaron] basically said he fancied me, and he's been flirting with me and stuff, and then... last night in the bed, he went to kiss me on the neck while you were in the bed with me. And that's when I went, 'If you do that again, I'll elbow you in the face'.
"So I just feel like I've been used as well, Maisy, because I've been flirting with him."
Maisy had earlier been seen defending herself against rumours spreading around the housemates, telling Louise Cliffe: "Don't spread crap, because I haven't done [anything]. Nothing happened between me and Aaron last night."
Later, following an animated discussion over the kitchen table, an exasperated Aaron threatened to leave the Big Brother house, saying: "Oh, I'm going home, I'm going home."
> Big Brother: Faye and Aaron wrestle in bed
> Big Brother: Maisy, Aaron get intimate over fake tan
As he waited outside the Diary Room to speak to Big Brother, he added: "All the Rebeckah stuff is going on again, which everybody knew about, and nobody had the balls to come and say to me about."
Jay McKray said: "You've got to sleep on it anyway, they won't let you out... Anything can be resolved."
Aaron added: "Now, this has happened again today, and everybody's been talking about it today, and no-one came and [talked] to me about it.
"I mean, Maisy looked stupid, and it's my fault, and now I'm being told that Tom's on one with me and I don't necessarily think that's my fault. But if I've led him on then, I don't deserve to be around people. I'm a bloody idiot."
Aaron then expressed his belief that he would be nominated by his fellow housemates and evicted by the public on Friday, shouting: "Half the house hates me now!"
As the boys continued to protest, they reassured Aaron and led him back to the living area, handing him a cup of tea.