it;s not about believing. but yeah most of virtual love are fake, or only temporary attraction. But then it backs to each individual.

rather than a matter of love,i belive that's just a certain kind of "interaction",sometimes when we are upset,we need someone who we can vent to them,and never mind who they are ,even the words can't be speaked out to my parents and best friends ,because we really need a outlet in the modern society.but you know there' s a rule that you never change,it's not in the real world.so don't follow the wrong sense when you are depressed.

It's not a matter of 'believing' or not. Do you believe in love from real life?

maximum are fake.

Many people lie on the internet to make themselves look richer, more attractive etc. Until you meet someone face to face and spend real time together, you cannot say you are really in love.