Why would I need a cohabitation clause if that is already covered by State Law? I also don't understand how everyone can say just pay the money.
Put the clause in the settlement agreement. It may be belt and suspenders, but better safe than sorry.
How would you feel if the money you were paying your ex-spouse went towards supporting her and her new boyfriend? If she were living on her own and trying to improve her chances of some day earning an income to support herself then I wouldn't have as much of a problem paying her the money. Why should I have to do without because I was married to her and now I'm not?
I do pay spousal support to a former spouse who has (in the two years since divorce) made no effort to get a job and who uses the money to support herself and her new boyfriend. I don't particularly like it, but I chalk it up to the cost of getting rid of her.
I could do a lot with $900 a month for the next two years!
You may not realize that spousal support is tax deductible, so the actual cost to you is not $900/month, but rather less than $700/month (assuming the 25% tax bracket). While that may still seem like a lot of money, the tax deductibility does help cushion the blow somewhat.