Who is right here?

If a friend of mine has a sugar daddy (Call her Krista) and one day she and her friends go to dinner and one of the friends brings an additional girl, let's name her Jamie.

Jamie comes in with a very judgy attitude and is rude to Krista, Krista asks "I'm sorry, do you have a problem with me?" Jamie responds "Yes, I don't respect girls like you, you have no morals and I can't take anything you say seriously since I know what type of person you are." little back and forth goes on but Krista ends up saying she does not give 2 fucks what Jamie thinks.

Later in the night Krista tells the girls they're all going to the Bahamas and she's covering flights and airbnb. Jamie gets excited and Krista says she's not invited.

Again later that night Jamie is crying to one of the friends about not being able to come and the friend asks Krista to please

reconsider, that who cares what Jamie says "It's not that important".

Krista says no, if she's too highty-mighty about her lifestyle she can't think she'll ever be invited to anything Krista plans.

Who's right here? is Krista being too harsh or is she on the right.