lol i'm pretty sure they won't become a couple.
I think no one in this season will be a couple. The blind dating around the world thing doesn't really look like it would work.
Normally, people will see the beauty in one person and then the bad. There's always that compromise because you love the positive side of that person. You're emotionally invested in that side of that person that you will be willing to also take in the bad side.
But in the show, you'd see the bad side first before you see the good side because of the stress of the game.