My thoughts on who would go with another partner:
As has already been mentioned, Jet and his wife Sara and Brook with another random friend (she doesn't really know Claire all that well and probably doesn't care who she goes with) (and Brook's not married yet and Claire is right?)
Not Meghan and Cheyne (aren't they married now?)
How about for a "Eric and Danielle team" Dallas and Starr (the names are just too funny anyway)
Tammy of Tammy/Victor might
You would think that Kynt and Vyxsin would have to go together, but maybe their FB status means that they were not going to see each other for a while
Didn't Brent and Caite break up?
One of Jaime and Cara could
Same for Kisha and Jen, Connor and Jonathan, Sam and Dan, etc.
Maybe I got a little carried away with that idea...