Am I overreacting

I'm sure I am. I'm currently 16 weeks pregnant. My husband is a small music artist but is slowly growing a name for himself and has even had a couple concerts. He went on a podcast recently to talk about his music and I got upset because he spoke about his ex. The person interviewing him just asked what his least favorite song is and he said this one song that is fairly one of his most popular. Then he goes on to talk fo 20 MINUTES ABOUT HIS EX! He said it was his least favorite because he felt like he was being "too hard" on his ex girlfriend. He wrote the song when he was 16 and posted the song onto YouTube when he was 19 and made a music video 5 months later. He said that he has a whole album about him being abused with songs about his abusive ex wife and abusive parents and no song in that album is as angry as his about his ex girlfriend when in reality all she did was send her friend to give him a note breaking up with him. He doesn't regret writing the song because that's how he got out his emotions at 16 and he's happy his 16 year old self went to poetry instead of violence when all he witnessed at home was violence but he regrets posted it and making a music video basically painting this girl as a whore when in reality she didn't really do anything super wrong and how she didn't "deserve" that. Why I'm upset is because he's 33. Why is he worrying about his girlfriend from when he was 16? Why is he thinking about her enough to regret a whole song? Am I overreacting?