I have mentioned somewhere else as well, that these little villagers have very definite personalities. You may find that Villager A likes Villager B, but Villager B always runs away from A. However, A may have more luck with C. Alternatively, you keep trying, it's almost like they learn more about each other by going on constant dates. You never know if you will get the kissy noises, get nothing, or running away.....or even result in a baby, but then that's the same in real life as well, right?

If I am trying to increase the population, I will keep at it until the mothers I want to be nursing do so. If I am not too bothered, I often just set the females I am happy to be off nursing for a while to breed mode, and let them do things at their own speed. It all comes down to the stage of the game that I am currently playing, and other players have different styles as well

Savi