Depends on her family. If they are aholes who happen to be sox fans they will make you miserable just like aholes who happen to be Yankee fans.
Originally Posted by DIEHARD YANKEE
If they are intelligent, reasonable people who enjoy the rivalry for the fun of it then you will have a great time being around them even though you will get teased plenty but for the fun of it.
As opposed to the ahole fan who will feel like kicking your butt after downing a six pack at every family gathering.
There are many couples who root for opposite teams and get along just fine.
"Well, that kind of puts a damper on even a Yankee win."
-- Yankees announcer Phil Rizzuto after reading a bulletin that Pope Paul VI had died