Is ignorance really bliss?
Ignorance is bliss only to the folks that know what ignorance is. The ignorant have no concept of their bliss because they have no concept of the hell that the non-ignorant subject themselves to. The intellectual (supposing that the intellectual is the opposite of the ignorant) builds up its own sense of pain and hell and adds onto it exponentially--and just to make that even more of a burden to bear they add on this little thing: Ignorance is bliss.
A psychologist once told me (something to the effect of:) Friends fill a specific need we have at the moment. If we need someone to be our friend and hold our hand we will find a person that can do that, or if we need someone to have fun with or someone to be serious with--or whatever the need. We will satisified it with a friend. And we become friends, best friends, good friends, inseperable friends.
Then of course--folks go to college or away to the military or whatever. And while there is a lack of that friendship, the actual lacking can go mostly unnoticed because we'll find someone to replace that person. (That sounds crude, doesn't it?) So to a certain extent we are friends with personality types or astrological signs or however you like to think of it. Or we gather friends interested in similar things, or whatever. There is always something we need and thus we are always looking for a friend to fill that need.
On the other hand--sometimes you need the one specific friend with whom you've shared whatever--closeness, secrets, trouble yaddayadda. Some people don't have casual friends, but are a lot closer like a family or something. It varies depending on your personality and the personality of your friends.