But the shitty part was that he admitted to me that he still thinks about his ex and that he doesn't even know whether he liked this new girlfriend of his or not.
An acquaintance of mine used to learn how to play piano and sing for 5 years and says he has the musical ear but can't distinguish between AI "music" and real singing.
It could be used as a really nice plot device when what you want is to have a greater emotional impact on your character, specially if it's someone who barely expresses strong emotions.