xanadu did kira give up muse power to be with sonny in the end

hey everypony hail luna. i just finished watching my fav musical "Xanadu" i've been thinking in the end of the movie did kira give up being a muse to be with sonny. to those who haven't seen the movie stop reading as i'm entering spoiler territory for the ending of the movie you've been warned. anyway sonny found out kira was a muse from greek mythology to help him and Danny make a roller disco so they can live out their dreams. danny wanted back in showbuisness and sonny wanted to be apart of something amazing they got their wish when kira the muse helped them but along the way sonny and kira fell in love with each other which was not meant to happen. when kira realized this she told sonny that she wasn't meant to fall in love but she did as a result she had to return home in mount helecon or heaven to put it simply. she left. sonny almost gave up in finding her but danny told him to find her and bring her back. so sonny does he finds a way to her through a mural painting and goes to helecon to bring kira back. he then confronts zues and pleads with him to let kira come back zeus said it was impossible and against the rules. he sends sonny away. by this point kira laments and sings about how much she loves sonny and wishes to return to him. at the end of the song zeus relents and lets her go back for the opening night of "Xanadu" the roller disco. she spends what we believe is her last night together with sonny. she sings about the roller disco and how much xanadu means love and togetherness. at the end of the song she and her remaining muse sisters leave in a flash of light. when sonny sits down beside danny. danny says he's got a gift for sonny and calls over a waitress and leaves the waitress brings sonny a drink. sonny looks up to thank her and it's revealed that she looks exactly the same as kira. it closes with him and her talking and laughing with each other like they've known each other a while. i believe that the waitress was kira. i think zeus saw how much they loved each other and that before her appearance at the roller disco he offered her the chance to be with sonny forever but to do so she had to give up her immortality and her powers as a muse to be with him and i bet she agreed. but what does everypony else think tell me in my comment section below. happy nightmare night