You're right. As I've never had experience with adult games, it took me a while to realize some things, such as the fact that repeatable events make the game more interactive and fun. However, I don't want to add many of these things to Solvalley because being my first project, I think it's time to finish the storylines and launch the final game.
In my other project (HS Tutor), however, I'm giving a lot of emphasis to this, especially in the current version that I'm going to release this month. Unlike Solvalley the player will be able to find the girls in the city regardless of how much he has developed the storyline with them. And the more progress he makes, the more options he'll have for replayable events with them.