While talking to Josie in the kitchen, the make-up artist said that she had not planned to vote for any of the remaining girls in the house until Corin voted for her.
"It's her choice if she does it, but for me I've got a big loyalty towards women," she explained, before going to the garden to confront Corin.
Corin told Jo that she struggled to choose people to nominate, but went for Jo as she had previously been saying that she wanted to go home.
"Even though you're saying it's because I want to go home, for me, I look at who I get on with," Jo replied.
Corin went on to say that she did the same and hoped that Jo wouldn't take it personally.
Jo said that she wouldn't but it had changed her perception of the former sales assistant. "Of course, but I'm not going to be fake babe, it makes me see you a bit different," she told her.
Corin replied that she understood but questioned why Jo then chose to nominate her. "You got me over my head, so was that tit for tat?" she asked.
"Oh yeah 100%, I thought well if that's how it is," Jo added, before reassuring Corin that she was not angry with her. "You don't have to keep on apologising, I'm not annoyed, more surprised."