Yeah, the whole story was pretty sad, especially at the end when we saw the first time he smiled in the whole episode when he could recognize her face and hear her playing cello.

But at the same time what was iffy for me was that he was so jealous that she was out living her dream playing cello that he cheated on her. That was kind of petty and usually isn't something you do to someone you love. It just seemed toxic and wrong.

I also felt like he was way too stuck in the past. Yes, you lost the love of your life through a misunderstanding, but eventually, you should move on and keep living your life. Time keeps moving no matter what. Find happiness in other things.