It's all about sharing. If he can't cope with your wishes - Im afraid the project is ill concieved. If you want the project and that is the deal - how much do you want it? (pun intended)

Sound like you want it on your terms and if he wants it on his there is a problem. Ironic - what?

Nothing comes (pun intended) without a price - what's your limit? What's it worth.

I did try to start a platonic relationship with a lass who had been raped and it never got moving. I will never know how long I would have lasted as a celibate or if it would have moved on. But I was willing initially. She was good company.