She's already at her wit's end trying to juggle the attentions of Siavash and Marcus, but soon Noirin might have a new problem landing on her lap. Remember how we told you that the Irish housemate's ex-boyfriend Isaac was rumoured to be going in the house? Well, he's actually here in the UK now! Not only that, but Noirin's mum has been talking about what will happen if he does go in, and it sounds as if things might get quite dramatic. "We know Isaac is in London now," Noirin's mum Jacinta told Evening Herald. "I think she will get a huge surprise if Isaac comes into the house. Honestly, I think she might quit. When I saw her last night, she looks a bit fed up now, so I won't be surprised if she jumps over the wall." Noirin is up against Marcus in this Friday's eviction, and if she gets voted out she may only get a few minutes with her former flame. Jacinta goes on to say, "If he goes into the house and gets down on one knee, I think it might be a joke – but it's all up to Noirin and I trust her to make the right decision." He's getting down on one knee?! But what will Siavash say? And Marcus? "[Marcus is] scary and too old," says Jacinta, and Siavash is "just a bit of fun to keep her happy. I don't see Noirin and him together in a million years." We love it! Roll on Friday!