I was just about to post something similar! I think crushes would be awesome, to have one sided romantic interest would be really fun in gameplay. You could try to get a certain sim to like you, or you could have a sim who is secretly in love with you and picks fights with your romantic interests. I think it would be cool if sims could have a "type" where we could choose their preferences like maybe they are attracted to goofball sims or they really like sims with glasses. I always thought online dating would be cool. they could match with a sim and go on blind dates, I think that would work awesome with the dine out pack. Meeting other sims and starting up relationships is one of my favorite parts of the game so I wish it was a little more multidimensional.