My [M38] wife [F37] gets mad when I actually fully use my personal day of the week. Any ideas why?

We have a 1 year old, and a few months ago, we decided that we'll each take a weekend day off for own hobbies and stuff.

But when I actually take the day off and end up staying out, she gets passive aggressive and mad.

There's no communication from her and if I actually ask her she'll refuse to communicate.

I haven't put any restrictions on her duration of being out but usually she doesn't go out all day.

Today, I was out for about 7 hours because of multiple chores and groceries and shopping. So I wasn't really out having fun.

But I arrive home to her being pissed again, even though she didn't tell me that she wanted me back by a certain time.

Why would she be mad then?