Yes, he blames you that he had kids (even though they were his idea) and that as a result of these kids he now has added financial and life responsibilities. He does not want to blame the kids or his own decision to procreate, so he blames you. Tough s---. Sorry this response is not more in the "helpful" vain, but come on. He did not have to procreate or leave his wife so that his life would become even more complicated. He also can choose help instead of blame for his depression.
