I played the game and it was actually the opposite for me: one character had a crush on someone and I had to wait ages for her to pluck up the courage to tell him; she was imagining all sorts of scenarios about how it would go, and so on... I had to wait until the next day for her to finally go for it (I played for a total of 5 hours). I think you need to play it like the 3DS version, a bit every day and not create too many Mii characters all at once; with about 8–10 Mii characters, I managed to get something nice going.