@katya07,
After reading your other threads, I am guessing that you are still pestering him over those other issues and he is getting a bit upset because he has already given you an explanation.
If this is something different, then I revert back to my earlier post that you need to give us a bit more info. But my guess is it is the same stuff that you keep pestering him about and he gets ticked off and loses his patience and raises his voice toward you. You obviously have trust issues with him, so do both of you a favor and end things and find someone you can trust.