I ran into the same bug as Wildride of being able to stay in the bathroom when Sam comes in, if you don't use shower or brush teeth and get removed from the room.
When the kiss option opened up for Molly, I was able to kiss her twice the first day, and then never again. Talk option resets every day for everyone, but that seems to be the only option that does for Sam and Molly. This goes for the iPhone too. I was able to text Carly and Molly twice the day I bought it, but not Sam, and the only one that I can text on another day is Carly.
Day 6 and 7 mimic a weekend, with different placement options for the girls hour by hour, but this continues after day 7. Days 8, 9, 10 so far have all run on the 'weekend' movement pattern, even including the 'reward' from Carly for keeping your chores score up.
Unsure if this is a bug, or just a feature, but Molly capped at 100 desire. Sam has passed 100, although no new options have opened up so far (at desire 101+, I was able to enter the bathroom while she was taking her morning bath).