Why Do Girls Change So Drastically When They Gain Admission?

Many of you must have observed this or even experienced it. Back in school then, thrz a female frnd will do talk almost everyday even on extra cool but the moment she gained admission she just switched off. Her character changed, and all that.

So many guys also complain that their gals change after gaining admission into schools. I dont know if to term it as one if the few ''madness'' of the female species cos after a while they will come back to beg for forgiveness. Please drop your comments below...