My dear developer, EXTREMELY AWESOME job on this game xD
(oh yh, the intelligence description in wrong, it says that int decreases interaction SPEED instead of time) 5/5
Philosophy time!
As you may have noticed, If you place about 5 people on the game, they all will have stuff to collect and they all will level up a lot. But if you just spam 30 people on it, very few will be high level and most will be level 1.
We know that level = happiness.
Then i think that applies to friends. You will be much happier having few real friends (high level) than having a lot of fake or not-so-close friends (low level). Get it?
Thank you, glad you enjoyed it!