I think this is the beginning of the end.......

Hubby and I always agreed that we'd never let his son (13 yrs) from a previous marriage come between us. That all changed tonight. Hubby has "suddenly" decided to make SEVERE changes to the visitation schedule that I am NOT ok with. He won't budge and has given me nothing but ultimatums and firm statements that it is his WAY or nothing. I am left with no options. I won't be TOLD how I am going to live my life. We agreed that we'd work "together" on how often the kid visits, etc. Hubby has decided he wants more and is completely dis-regarding my feelings all together. He is actually disregarding me and our marriage all together. It has come down to it being either his way or we are through....or at least that is where it is going. I told him we should TALK about what we can do to find a way for us to both be happy with the situation. He will NOT discuss it. He says there is NO negotiation.