Known cures include doing something to take your mind off things, thinking about other things, and, the most effective method, going to sleep.
9pm: KB: Yea that was a great vacation, I can't wait to go back :)
1am: KB: Damn I miss them :'(... I'm'a stay up for another couple hours and call them...
3am: KB: FML. I WANNA LIVE IN INDIA. *feels depressed as hell*
3am: Alex: Talk about LND... go to bed foo
*goes to sleep*
10am: KB: hey that vacation was fun, I can't wait to go back next year :)