>be in a long distance relationship
>almost 3 years now
>everytime we see each other it's some of the happiest days of my life
>have so much fun together
>time passes by so quick
>after a two week visit I just dropped her off at the airport this morning
>feels like I was just there picking her up
>won't get to see her for another 4 months
I feel genuinely depressed
Go live with her, or have her living with you.
Why are you in an LDR for three years with no end in sight? Do you expect to sustain this indefinitely or something?