Can you be in love with a guy before you’ve met face to face? And when you’ve only known him for a few weeks?
Of course you can! Love has far more to do with the mental connection between two people than with physical appearance (though physical attraction is certainly a plus). In this age of online dating, I’d say it’s actually not that uncommon to fall in love with someone you’ve never met in person. And as a person who falls in love very easily, I will tell you that in my experience falling in love can happen faster than you think.
That said, as a person who falls in love easily, I would just make note here that falling in love and having a solid, long-lasting relationship can be very different concepts. So embrace those feelings but proceed with your eyes wide open.
Don't be shy! Say what's on your mind and get a good dose of perspective in return.