Indabuff

First time poster, long time lurker. My wife wanted to have a small get together with some neighbors for the Super Bowl this year. Three couples attending. Unbeknownst to me one couple happens to be Pats fans (unsure to the extent). How does one deal with this situation? If it was a large gathering of Buffalonians I'd consider it a wash but that's a quarter of the group rooting for the enemy. Thanks, I'll hang up and listen.