To everybody, Thank you for replying! I appreciate it a lot. Its just that, i hate being the person who's always being a target. What have i done to them, nothing. Why they do this to me. And honestly, i dont want to give up at them, i want to fight them, but again with this depression everything seems much harder to do.

@Rohag
Thank you for the link, i will have a look. I',m thinking i just want to stop talking to him, but again that is just unfair, i never start a conversation with him, he started it, i told him to mind his own business, but he kept coming back with more "attitude".

@ToeJam
Its a website where every members is a benefit for the website itself, i already report his behaviour, i even report what he did with other member back in 2011, the only advice they can gave me is just disregard his messages. If this happens on a website where i can block him away, i would've done that. This person actually tells me where he lived, called me "names", and told be to go find him and show him how a pussywuss i am. The guy in my workplace, we never spoke to each other, but i always knew that from the way he looked at me, from the way he behave, he's the kind of guy who always wanted to be "the man", you know the macho guy with tattoos, and if he wants to sit next to that girl, he would done everything to get that, even if he must pushed me aside. Me personally, i dont want any trouble in my workplace, if i told him to go find an empty table, i know what kind of things that will possibly happens next, and i'm the kind of person who dont want anything like that happened to me in my workplace. I',m doing the right thing like i always did, but why people always doing the wrong thing to me.

@Perna
I understand what you mean. But again, its been years and years i'm being treated unfair, at first yeah i leave it alone, but as i grow older, i'm thinking i'm a grown-up man now, people cant do that to me anymore, they should learn to respect other people like i did. I actually told the first guy about respect, do you know what he said? "I will never respect the pathetic ******** people like you".
He's the one who's sending me a ******** in the first place, and he called a pathetic ********? In this case, that is an ultimate insult to innocent person like me, how am i supposed to leave it alone.
The second guy, i dont know Perna, maybe i'm being too nice to people, like always. I dont mind if he ask me nicely "hey may i sit here?", but he dont say anything to me, and the chair is right behind me, i'm instantly responded moving my chair to give him room and pulled the chair behind me, i know its a stupid thing to do, but i wouldn't be that stupid if he can respect me in the first place by asking nicely to me. He such a jerk, really, if you meet him, you would know just by a quick look at him. All man have rights to be a macho guy and tattoos, but that doesn't mean he can do everything he wants.

@Clara22
Thank you for sharing, i'm sorry to hear it happened to you too.
You are very correct, i always try to be polite to everybody in my workplace, because i work there, yes i wouldn't risk my job by starting a fight, sometimes people around me dont have the same attitude like me.
Bullies, yeah, in highschool, i'm always a target, they laugh at me, makes fun at me, while i never done anything to them.
The guy online, i dont know anything about him, but he kept calling me a "little guy, little punk *** tough guy, little ***** wussy, etc", i'm guessing he's a big guy, he told me to go find him, told me where he lived, i dont know. Maybe thats what jerk always do.
I'm very sorry to hear you're disabled, it must be hard for you. Yes you're right, i'm always in a victim-mode, i dont know why, but i think you understand why cause you've been there. I've tried so many times to place myself in a survivor-mode, but its still not working, i still had a big anger inside me, grudge inside me, i will never have my peace.

@hannabee
Maybe yeah he is a SPAM. i will try to ignore him. Thank you