If there's any way to get the original video from her, that's going to be the best option for producing a clean soundtrack. You could then use PD's audio ducking feature to put in the music track and automatically lower it when someone is speaking.
If getting a clean video isn't going to happen, there's a vocal removal option in AD that can be often be tweaked to do just the opposite - remove much of the music. You may also have some success in using the noise reduction, visual cleanup and/or equalizer tools to try and preserve/extract as much of the vocal components as possible. You're likely going to have to do a lot of experimenting
Once you've done that, there will certainly still be a noticeable amount of music in the background, but if you apply that same music track in PD and properly sync it, you should end up seeing an overall improvement over what you currently have.
YouTube/optodata
DS365 | Win11 Pro | Ryzen 9 3950X | RTX 4070 Ti | 32GB RAM | 10TB SSDs | 5K+4K HDR monitors
Canon Vixia GX10 (4K 60p) | HF G30 (HD 60p) | Yi Action+ 4K | 360Fly 4K 360°