Am i the asshole?

Me and my SO have been together for 7 years. I like.arets and crafts, reading, video games and gardening. He likes politics, psychology, and business. He was talking to me the other night about business while were.eating dinner. I was listening and responding as necessary but wasn't engaged. I was tired and hot and had just gotten home from work. He all.of the sudden askes me why i cant at least pretend to be interested. Ive never once tried making him be interested in any of my hobbies or topics of choice. Is it wrong of me to be upset?