Unlike child support, spousal support is often very difficult (if not impossible) to modify after the divorce is final, so getting it right the first time is a must!
My ex and I have been divorced a little over a year here in MT. The divorce decree was very "plain jane" - this is a no fault state. So the decree simply says who gets what and states that I pay support for a four year period and that's basically it. No kids involved. I argued to have a statement in there about support stopping should she remarry prior to the end of four years; she fought hard and long against that - and I finally just said the heck with it - I was advised that here in MT, it's pretty much a given should she remarry.
Through the grapevine (because she isn't going to tell me), I heard she did remarry last week. I have confirmed that this is true. I was maintaining a lifestyle she was accustomed to, but now she's chosen a new lifestyle. What's the next step - get an attorney and get a modification to the decree? I know she's going to fight this, because she's getting an awfully big sum of money from me every month - much more than what "she was accustomed to".