Why does my husband turn things on me when I try to better myself by learning things on my own?

I am a professional dancer and am starting a new online course for my students and for the public to purchase. I told my husband my plans and we talked briefly but he was acting standoffish when I would ask him to look at what I was doing to get his feedback. We then we got into an argument because he feels like I don't allow him to “use his skills” but I tried explaining to him that I learn by doing and when I need help, I ask him for it. I have always taught myself how to edit, market, film, etc. He pays all the bills currently but I am looking to make my own money and I believe it bothers him that I want more independence. I once got booked for a big artist and it felt like he wanted to sabotage it and keep me from going but I went anyway. This is reminding me of that time. It was like he hated the idea of me doing something that could generate good money but masks it with “his feelings” about not being used for things I already know how to do. Then when I explain my point of view, it’s now I don’t care about his feelings then he storms out the room. How did me telling him about what I’m planning to do turn into that? I don’t see myself being with him by the time I’m 30. Currently, 28. He’s done this often. He’s 38 by the way.

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I had an aunt tell me he’s jealous of me but I don't know if I believed it until now.
Why does my husband turn things on me when I try to better myself by learning things on my own?
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