Olivia should have been arrested...
...for assaulting Grace the way she did. I thought this whole scene was very unrealistic. If this happened in real life, in a club, espcecially today, and even in 1989, there would have been a flurry of bouncers or security guards to stop this. Also, beating someone down in front of that many people would definitely lead to an arrest.
It also bothered me that no one in the crowd did anything to help Grace. Also, to me it is unrealistic that a woman of Grace's size could be beaten down so easily, although Grace was a meek and mild person and she did not fight back. She should have fought back and defended herself, but, it was not in her persona to do so. Grace was not a weakling, she carried a mattress up several flights of stairs by herself and she also had a lot of weight behind her; but, she had no self-esteem and was not a fighter.
Also, she would have lowered herself to Olivia's level and could have been arrested herself. It is too bad that sometimes being the "bigger person" means to allow oneself to take abuse.
Also, Olivia was not THAT hot, she may have been tall and thin, but she was not THAT pretty. I think Ricki Lake was and still is prettier than the actress who played Olivia.