Leaving the house

We had this fight - we arent the yelling type but we were arguing. It was about money. And it got to the point where I felt like I was repeating myself and I said babe I just need a minute to cool off so I'm going to shower. I did not wait for a response from him I just turned and went to the bathroom.

We have a clock in our bathroom - so I don't run late in the mornings. I showered for 8 minutes to clear my head and calm down. I came out, got dressed came back to the family room (FYI we are in a condo so everything is just right there) and he was gone. Keys wallet boots. And our 2 year old was just in his exersaucer.

And literally 2 minutes later my phone dinged it was a text from him explaining himself and asking if he could come home tonight.

I never asked him to leave. In my head I was like WTF. He didn't even say hey I'm going out so watch our 2 year old.

How to I reply ro this text. Like help. This is the man I'm gonna marry in summer of 2022?!?!