My sims Patrick and Joan are in love with each other and there relation ships are 100+ and they don't have propose interaction for some stupid reason! How the @#@$ do you get married in this game?!?! This game said that you CAN get married. But how???

to get married on the xbox first you have to invite the sim you want to marry over then talk to him/her then ask them to leave. Next you have to invite them over again after dark. When you get the chance to "flirt" with your guest do so. Then "serve dinner" until your guest is happy "watch television" (to make the guest watch television highlight your guest and select watch television). Last but not least "talk","hug","tell jokes","dance"ect, until you get the chance to "PROPOSE", when your guest says no you will hear warning sirens and your guest will state a reason, do what the reason says and keep trying until your guest finally excepts your proposel.