I need help

I don't know what to do I have found me a good man finly and its hard for me to trust him cuz in my past I had two guy one was my ex boyfriend and the other is my ex husband and all they did was lie to Me saying they love me and said they would never leave and cheat on me but they did that to me and know that I found the right guy and he know what I went throw and hate it seeing me cry when he talks to me all sweet and kind I never had that done I don't know what to do I am afraid if I don't stop what I do say like I am sorry every time I don't do nothing wrong I might lose him and I don't want that to happen he said that he loves me so much and trying to help me throw it please help me on what I should do.