In a way, loving through cyberspace is more authentic as your chemistry is not involved in this feeling. it is a feeling wrought by their personality and opinions. But also, it can be terribly misleading, as when you meet them in person, sometimes, there is zero physical chemistry, and things may fall apart.
Being in constant communication with someone, may make you develop some sense of reliability on that person. Most people tend to mistake fondness for love. However, they are people who have fallen in love through internet chatting, although such cases are very rare.