Spotify’s AI potentially hearing conversations

Me and my girlfriend have been dating for three months, yet we’ve been seeing each other for a bit more. When listening to music in my car, she will usually choose the music from my with my Spotify account), then we tend to discuss that music and sometimes I’ll put something I like too. Her taste in music is widely different from mine, while I like midwest emo/indie rock and such, she likes Lana Del Rey, Ethel Cain and others like that, so my Spotify recs have been weird lately.