“I think he might be happier if I were no longer in his life”

I’m engaged to a wonderful man that has been a great part of my young adult years. We have been through many up and downs, but recently I made a mistake that has cost us financially. He resents me for it, and although day-to-day he is very loving, when we occasionally fight he turns the conversation toward my mistakes and becomes overwhelmed and angry.

I am very disappointed that I am now his greatest stress — and quite possibly a regret. I would be completely heartbroken without him, but I think he might be happier if I were no longer in his life.

Any advice?