Is OTHER wrong in the post ? POST : Just some background me and my girlfriend have been happily dating for a year and a couple months now and we both enjoy doing theater

That being said here comes the story

A little over a month ago me and my girlfriend both decided to audition for our schools play/musical leading to me getting a lead role in the play I auditioned for and she got a lead role in another play/musical. In my role however there is an on stage “affectionate” scene where I have to kiss the leading female role which is a girl I know but have no history with no feelings for etc...

The show is almost exactly a month from now and my girlfriend is clearly getting upset by the fact that me and the other lead have to kiss but won’t admit she’s upset. Also says she does not me to drop to show and I don’t want to drop the role it’s the first and last time I’ll ever have a lead role as this is my last show before I graduate (not going to pursue theater after I graduate) and it’s a role and show I really enjoy. 

Am I the asshole for wanting to continue with my role?