Welcome! I'm sorry this is happening to you.

My wife and I don't like the same music, either. Yet, we've been married, um..., a very long time. Oh nearly 30 years!

I've had only two semesters of psychology (I'm an engineer) but it sounds like you and your wife have "opposite" attachment styles that drive you apart. Your wife might be "Dismissive-avoidant" or "Fearful-avoidant" whereas you might be "Anxious-preoccupied." For example, the more "space" she craves, the more you crowd her.

I hope you go to therapy by yourself if your wife refuses to go -- it can be very helpful!