I suppose Liv has to be Facebook friends with Mary, her son-in-law's mother. I guess it's the polite thing to do in the Internet Age. So, Liv accepted the friend request and continued to go about her Facebook business — viewing family pictures, playing Candy Crush, you know — just like anyone.
One day, on a daily check-in on Facebook, Liv received an invitation from Mary. It was for an event called "Son Rise Music Festival," a celebration in song featuring performances and bands with a decidedly (nay, overtly) Christian slant. Liv, who is Jewish, declined the invitation. Mary responded, curious as to why Liv would not be attending. This is the exchange that took place:
Mary: Why aren't you going to Son Rise?
Liv: It's my grandson's birthday the same weekend, besides — I'm not really interested in a Christian music festival.
Mary: What do you mean?
Liv: I'm not Christian, Mary. I'm Jewish!
Mary: You believe in God, right?
Mary: Well, then you're Christian!
Liv: No, Mary, Jews believe in God, but we don't believe that Jesus was the Messiah and we don't believe that Jesus was the son of God.
Mary: You don't? I thought everyone believed that.