Ask HN: What to do if my cofounder and I develop feelings for each other?

I'm male and my co-founder is female. In the beginning when we started, we were really good friends but never saw each other as a romantic interest. But now having shared many ups and downs together, we are beginning to develop feelings for one another. I like her, but I'm also worried that pursuing something romantic would not be good for the company. Have you ever gone through this experience and could share your thoughts?