If I was on a jury and saw a man laughing at the tearful woman accusing him of beating her, I would form an opinion that that man was cruel and heartless, a total asshole incapable of empathy, the kind of person who would be likely to commit battery. I would think if he was being wrongly accused that he would look pained or sad.
You did it! You are my hero! You told the truth. It’s all any of us can do.