C.S.
I have to say that although I agree with you, unless you and your man agree on this one, you cant really win. I would look at this as the footstool in resolving issues together. Whatever you and he decide together, the kids will abide by, but if the two of you are divided, no one will win. If the two of you cant come to a resolution that you both can easily live with, I would notice the red flags in this relationship. I am not saying it will be easy to find an agreeable answer, but working it out together is essential for the health of your relationship and family. Find a mediator or counselor who can help the two of you work on your communication and relationship. Peace to all of you.
(You might want to consider renting out that space so it is not available! ha)