I'm afraid I'm with Dan Wooton (sp?) ... nothing about them being a real couple rings true:
All their kisses are tiny, closed-mouthed pecks - now I know couples do show affection like this, but those two are cooped up in there 24/7 for weeks sharing a bed - I don't know about anyone else, but if I was in there with my fiancé at the early stages of our relationship for that length of time (they've only been together since Christmas, right?) I'd be thinking, 'Oh sod the cameras!' and be having a cheeky snog some of the time, either under the covers at night or in the store room or wherever. But nothing like that has been shown with them as far as I recall so I'm assuming their little pecks are as far as it goes or BB would be broadcasting their 'passion.'
They're engaged, but apparently have never lived together before (apart presumably when they were in the X factor house). Really? Apart from people who hold certain strong religious beliefs, who gets engaged these days before they've lived together? They are earning and both presumably are based in the capital, but they never thought to try living together for a bit before making such a big commitment as getting engaged?
The whole, 'I love you ... I really mean it.' Why do they keep feeling they need to say that they
mean their terms of endearments? It just (to me) seems a bit of a weird thing to say - almost like it's directed to us, like it's trying to convince us, rather than each other. If my boyf started saying that it'd make me feel less secure, not more secure (if that makes sense?)
The speech in the garden about how a couple has never won BB - FAKE! A desperate plea to the audience if ever I heard one!
Stevi's response to anyone who tells him 'You'd be better off without her in here/sometimes if someone is drowning you have to just save yourself' etc ... instead of sticking up for the love of his life, he's just nodding and agreeing and thanking them

... instead of saying something in her defence - which is what you'd expect someone who 'really really loved you' would do!
(sorry for the long ranting post ... I actually don't mind Chloe, but Stevi gets on my wick as much here as he did on the X Factor).