She comes from a family where he mother constantly changes partners.

If the players never changed partners, this would be impossible.

"Or does he change partners every two hours because he's unable to satisfy a woman for longer than that?"

Often dancers will change partners every dance in order to meet new people.

Over the course of the film, several couples form, break up and change partners.

"Can you understand that I might not want to change partners in the middle of it?"

More recent research has shown though, that they may change partners.

It would make us the talk of the place, if we were not to change partners.

"I thought you were a better dancer," she laughed as they changed partners.

She is just like most of the hollywood people, they change partners so frequently.