if you mean by them loving eachother simply get them to be friends and sometimes (i get bored and try this) i open the game and see if there are any orange/pink text bubbles in the apartments and if none of them help with the 2 ppl im working on i close and restart and basically thats it (i have a lot of time on my hands unlike my friend who wants this to happen but won't do it but im ok doin it