Losing a part of yourself

Hey guys,
have you ever lost a person you really liked or even loved? A person who meant the world to you, even if you didn't know them for that long. That happened to me not long ago, with a person I loved like my own brother and he left me. Not by himself, someone kicked him off. Whatever, that 'disparition' affected me a lot .
When you loose someone you love it's like a part of yourself is getting ripped off. You feel like something is missing and you really wanna get that thing back. But,... that thing doesn't stick anymore, it's not that they it doesn't want to, it's just that it can't.
This is actually what's going on in my mind right now. Every place reminds you of that particular moment you spent with the person and every single time you feel more and more lonely. Completely alone. But you cannot do anything about it. When a beloved one is leaving you, you loose a part of yourself. And you don't even know how that person feels about it, well you kinda do but you can't hear them telling you, and it's the worst thing. what's also horrible is that, you can chat with them but you can't feel them around you, see them or just touch them.
Anyways, even if that person isn't dead, you feel like they are.