I bet the clue is in how she was 'asked'.
Last year we were having a picnic at a big park and a couple arrived to have wedding photos. We had over 50 of the same breed of dog there, so the bride and groom got a few photos with all of the dogs sitting around them, then we took all the dogs for a walk around the lake while they got their photos, then we came back, the limo driver produced some bottles of champagne and glasses from the car, we all toasted the bride and groom, they left, we finished our picnic. That's how shared spaces should work.