I don't know whenever I force myself to do something it is always a bad experience. You can't force yourself to suddenly enjoy your ex s music. There is something else at play here. No adapting needed. It is ok to not like your partners music I was young and new and just falling into this and that. A person I met played a country song they loved by Garth Brooks I think. Even then I knew this person was not right for me. A kind of soft musical red flag. It is ok to use music as a litmus test.