How badly did I mess up?

I will try to be concise. We decided to move. We found a town we wanted to live in, but only in ONE school district there, as the others are crap. We sold our house and are under contract for our new home.

Today we noticed that our house is very close to being in a different school district. I double checked we were in the right district, but not how FAR into it we were. My husband is livid and says if the boundaries shift at all we are screwed. Now he says we can’t buy the house. He called me incompetent and lazy, among other things and names. He said he has never been so mad at me and that he was done. He left me and our daughter at the house and he just left. He won’t speak to me.

I know I should have been more diligent in hindsight, but I can’t help but feel this is not something to end a marriage over.

Thoughts?