Business investments... wait or dive deep?

[Vanessa Willard]

*This is a business question*

A neighbor had a great idea to start a business in our area that isn't here but would probably be a great investment. Her husband isn't wanting to take on extra projects so he told her to wait. She and I talked, I love the idea, and it seems like something I could fund without him. I suggested for us to still continue the conversation, and I would fund it. They have since moved across town. I've tried to reach out and she hasn't responded. Am I in the wrong or do I owe her something if I start the project without her?