Who's wrong here?? Is there any hope for us?

Unfortunately you made the mistake a lot of us make and believed him when he said he had changed and wouldn't cheat so you married him because you trusted him. He obviously hasn't changed...get the divorce and admit you made a mistake....why be with a man who lies and you will never be able to trust? Who cares what his family and friends think....look out for yourself. This is no way to live and most certainly is not a good marriage.