What if a trans woman hits on you?

This happened to me recently. I'm a straight male. We were getting along and I was enjoying her company when she asked me out on a date. She was surprised when I said no. So I told her I'm straight and that I only go for women. She was angry. Then I tried to say that I'm flattered but it made her more angry. I didn't know what else to say. <br><br>So my question is how should a man react in a situation like this when a trans woman hits on him?