I think Grace and Ashley are one of only two, maybe three tops, couples with any chance at all!
Davide and Keye seem very loved up.
I am not sure about Bailey and Rebecca. I think Bailey could have been matched with anyone in there (apart from Leigh, Davide and Keye), he seems very affable and approachable. Likewise, Rebecca could possibly match with any of the guys, she is attractive and seems nice.
Although judging from the video of their night out last week I think Rebecca was definitely flirting with Leah, based on the tongue through the fingers pose! But that could all be on jest!