This may be discussed earlier in this thread but I suck at finding it:
Concerning Andrea (although others affected as well, at times) - I get her to 25 but nothing happens, no text and wallpaper, no quest on the sidebar, points scale is limited to 25.
I chat/flirt again and THEN she texts me the first wallpaper but her points remain set at 25, no followup hint/quest/etc.
I go through building the hut despite no suggestion to do so, points still limited to 25.
I see the option to discuss planting a garden, wherein points seem to be accrued but nothing shows up on her scale-bar which is still limited to 25!
Do I just need to keep performing tasks for her despite no change in points? It'll show progress eventually? They're accruing but aren't listed?
Side note, I am also weirded out by her masculine name, though I do actually know one female Andrea. The name choice was a mistake for the girl's heritage, though I think that's true for nearly ALL of the characters in this game (did the devs even read what ethnic background they gave each character??) so the option to give them different names is great