For example, the OP seems to know (he writes it in the post) that he was fighting with his wife because he was generally stressed. It would be interesting to know if, once he had this realisation after changing jobs, he actually sat down and told his wife "you know, I'm sorry for how I was with you. I was unhappy and I poured it on you. Did you realise it back then? What can we do to make it better next time? Thank you for bearing with me."