Should I be guilty for wanting to leave my husband after 5 years?

My husband went through a mental breakdown. He has since been diagnosed as Psychosis. I have been trying to be there for him. He is a very nice person and willing to do anything for me. He just admitted to me that he cheated with 3 different women. He also admitted to smoking marijuanna. He also admitted to lying to me about drug possession arrest that I had to bail him out with our 4 year old daughter's college savings. He never told me about his mental illness. I heard from a aunt of his that he took medications years ago. I confronted him about it and he denied it. I married him and trusted him and now I am being hit left and right with all these things he feels he should let me know now. I don't guilty because I don't want to be with him because of all the lies and betrayal. I feel guilty because I don't want to be with him and he is mentally ill. I am so unhappy. Do you think I am wrong for making him go back to his mother's house?