Marriage and self/worth

We have been fighting with my husband for couple weeks now. Last night was the worst. The reason we were fighting is because I was negative about myself and lashing out on him. He said that I bring him down and he wants a divorce. I know that I can choose how to feel and act in this situation. I know the fights happened due to my low self-worth. I want to show up from the place of love, compassion and acceptance to myself and my husband as we go through this. I do not want for him and my child to be affected by my insecurities. I trying to find strong thoughts to use to get through this situation. Please help!