I am renting a 3-bedroom townhouse with 2 other people. Before we renewed the lease, I told them that my fiancé would be moving to this country and would need to move in. I agreed then to pay a certain higher percentage of the rent. Now that he is coming, they are now saying I need to pay an even higher percentage. I would not have resigned the lease if I knew that. Can they force me to pay a higher percentage if the landlord approves of him moving in? I am in Virginia.