Help me understand my husband’s problem

I’m trying really hard to see his POV but I’m just so annoyed.

Our kids are older, 9 and 15. If we make dinner or buy dinner, whatever, and they chose not to eat I just don’t stress it at this stage. You don’t want to eat? Fine. No snacks obviously and if they get hungry later, they can have the dinner we offered. The end.

But he gets SO personally offended. He’ll say to our 9yo, are you ready to eat? And if the 9yo says no, he’ll do a big sigh and mumble under his breath and stomp away. Same with our 15yo.

My kids don’t starve themselves. They have good meals throughout the day. But like me, I feel, sometimes they just are meh about dinner. Or like I’ll want “girl dinner” which is a silly way of saying a small whatever meal - my go to is usually toast.

I don’t understand why he gets so annoyed and so angry. It puts a strain on his relationship with the kids because they just see him as being angry and annoyed all the time. I tell him there’s no need to get personally offended by it - they’re not doing it to be against you, they’re just not hungry.