It is possible to fall in love with the IDEA of someone.
Because if you haven´t met how would you know WHO you felt in love with?
The physical side effect is still the same. The release of chemical substances such as
adrenaline, epinephrine and norepinephrine still provoke the same feelings and thoughts as if you´d meet IRL and sparks were initiated.
And it doesn´t matter how you try to turn it it´s still the chemical reaction of love. Regardless of it´s triggers. It may be dump. It may be reckless. But sometimes there is nothing to prevent it.
Unless you shut yourself completely out of life itself - then there is a definite possibility that you may never ever have to worry about letting anyone in on your life. On the other hand - why the heck would you be here then?
Because this forum is so much fun? (I rather doubt that this is the only reason!)
Now, the dangerous part is when you start all sorts of irrational things like giving up your job or something equivalent based on thin air.
There´s really only one advise I can give - take your time.
With E-V-E-R-Y-T-H-I-N-G! (yes, even when you´re suffering the consequences of an adrenalin rush to complete exhaustion to the extent that all you can do is faint)
Make sure you place a mattress near by