I think that reads like Shaughna
'When we do talk....' means they aren't talk much but when they do it's ok that's way more Demi than Shaughna. And the luck thing could be either.
Jamie will be pick Demi luke will pick Shaughna they will decide they are better off as friends in the next episode and someone and like and Demi will unofficially couple up. New guy in for Shaughna who will be the one and it's final time.
Probably loose some others along the way but that seems to be the producers goal.
I actually like Shaughna or at least I did but firstly she's being a hypocrite in my opinion this isn't that different from when she called Leanne and Sophie out for pressuring nas and 2 there are other islanders I want to see them!