Seriously, what Jade and Mikk said was a joke - hence them saying it was a joke during the conversation. Even Tahan understood that. Drew is the one who blew it out of proportion. Then proceeded to bitch about Ed and basically all the housemates.
It was not a joke, clearly. Watch it again. If these two were just joking they wouldn't have "forgot" the conversation and tried to get out of getting confronted about it. They're mean girls as well but they can't be honest about it because that'll ruin their image.