I'm a horrible hand at cheering people up RL and internetting wise. Usually it's small things I have to cheer people up from, like bad grades, annoying people, silly things, the minor annoyances of life.
When it comes to somebody losing a loved one, I just kinda... go

and can't talk. Period. Main reason being, I'm internally terrified of screwing up and hurting that person more somehow.
So I just basically sit and listen to people rant and cry. Some people don't get that letting their feelings out really does help in the long run, because it's not being blocked in and clogged up inside them to the point they're never happy again. I'm probably not the best person to say this, as there are problems from my childhood I refuse to talk about to anybody, but you need to talk to somebody face to face. It doesn't necessarily have to be someone you know super well, it could even be just a random stranger you have to sit next to on a bus or a subway train or whatever mode of transport you use. Talk to a friend, family member, somebody.
Mind, you don't have to go out right now this very instant to talk to somebody about it; you talk when you feel ready to talk about it. If you feel like you're going to cry when you do talk, go ahead and cry; it's not un-manly. If somebody looks down on you for feeling miserable and lost even though you're a guy, then phooey on them, they don't matter.
The board's always here for ya, Gobs. ^^ You do what you feel you need to do. I don't think you should just up and say goodbye one day and just leave entirely, but if you feel you need to take a break, then take a break for awhile. In the end, it's up to you.