If you want to "marry" them at University, and you have the NRaas master controller mod and the "cheats" mod that goes with it, you can click NRaas on the Sim you want to marry, click on intermediate, then "Long term relationship: Category, then just click on the click sign, then a list of Sims and their icons will show up. At the top, you'll see 3 circles. Click the circle/tab to the 3rd, the far right, and you'll search for your Sim. Once you do that, click on your Sim's name and a list of options will come up, i.e friends, best friends forever, enemies, WIFE, FIANCE, you get my drift? Yep, click on Husband/Wife. That's usually how I do it, if I want it to be fast. I hope I helped somebody.
