how to deal w my dad

I come from a middle class background where my mom(52) and dad(57) been married for 30 years now.

My dad is very specific about his opinions and way of life. For example- he doesnt like to eat outside, even if we go out he will only have dal and a specific type of roti.

Sometimes he makes exceptions but at his own convenience.

Now, recently my mom fell ill, high fever and cough We took her to a doc, while coming back i told her we’ll order food from outside but my mom said she’d cook instead. I told her ki rehne do this and that but i realised my dad dint insist at all, and kinda with v few words hinted that she can cook or let her cook.

I kinda had a v short argument w him post which he denied to talk on this.

He is someone who would never accept a mistake, atleast I’ve never seen him do that. He does make my mother realise a 100 of hers.

My mom and dad both are serving in state govt education board. So financially decently stable.

I have no clue how to navigate this situation. i talked to my mother and she agreed he is like that and doesnt budge on certain basic things.

There have been numerous such incidents, so it’s a pattern. There is no abuse or violence, but this counts as toxicity at least.

I’m on the verge of having a irreparable argument w him.