So What is up with Macduff?

   Why would Macduff want to stay and celebrate macbeth becoming king when he had just paid the servants to set up duncan and kill him. He cheated to get his title of "king". Macduff will probably feel like hes going to betray him & do the same he probably dont feel safe and hes aggravated & disapointed with the whole situation. I dont think all the people at the party actually knew the details to duncans death but macduff, ross, & the servants. He probably almost feels like it'll be his obligation to spread it, it'll be better off for him not to go.