Well, this would cause a problem, if you legally get married you would absolutley loose the support, and if you do this other type of service you might loose the support, as the former spouse can argue you are revcieving spousal support based on fraud, deception and/or trying to recieve support while being cohabitating and holding yourself out as being married, going threw the service, and jointly paying or recieving assets, funds etc. I would say, if you are gonna get married, advise the other party, so that you don't find yourself in front of a judge on contempt charges.