It is possible to meet someone over the internet... meet them in person.. and then fall in love later on. I do not think it is possible to fall in love with someone without ever meeting them in person. It is much too easy to misread a person when they are not there in front of you... much too easy to fool yourself with wishful thinking over the internet.
"The weakest soul, knowing its own weakness, and believing this truth that strength can only be developed by effort and practice, will, thus believing, at once begin to exert itself, and, adding effort to effort, patience to patience, and strength to strength, will never cease to develop, and will at last grow divinely strong."
- James Allen