J.W.
I can't remember how long you have been out of work but I am pretty sure he is aware. You have gone through this period without a plan and now you still don't want a plan. I can kind of see how your husband is frustrated.
You have known for all this time your current field has no jobs, yet instead of going back to school you wanted to play stay at home mom and bury your head in the sand. Now you are saying it would be at least a year before you could switch fields can you kind of see how he sees it as you already wasted a year, now you want to waste another year......
He is looking for a new job that pays more because you are not pulling your weight. I am sure he would love to stay in his current job but because you have no plan he is going to have to step up with more income.
You should take a class, get a plan, show your husband you can do your part. Maybe he will believe you and stop looking for another job. :(