How do you walk away not being bitter?

It's hard. I'm going through the same thing. I honestly feel hat the guy owes you an explaniation and If he doesn't give you an explaniation then he's a freaking coward. I mean, the guy must really be inconsiderate to not answer any of your e mails or to not return your calls. Maybe he thinks it's best If ya just stop talking to each other. Well, it maybe best for him, but it is not best for you and If he has any respect for you what so ever, he would return your calls or your e mails.

It's all about your attitude and belief. It seems like you believe that men or people should or MUST respect you and not ignore you. The truth is, no one has to respect you and pay attention to you. So instead of thinking that he is an asshole and he's ignoring your because there is something wrong with you, try to give the situation the benefit of the doubt.
Perhaps he's ignoring you because he think it's best that you two shouldn't be together, and he thinks ignoring people is the best way to let them know so. Perhaps he has some social or psychological problems where he finds it comforting to ignore people. There could be endless reasons to why he's doing this. We usually find the most pessimistic conclusion to people's action.
Just remember that everyone(you and I are included) has a flaw or two. And with us being flawed, we simply can't be perfect all the time. So we all need to be understanding and prudent enough to see through and forgive our own and other people's mistake. That's just how you avoid being bitter and jaded in a world that constantly tempts you to be so.

If you gave your all in the relationship and he's acting weird let the guy know that you've been nothing but good to him. don't give up on what you've work so hard for. let him know that he's been acting strange and why he's ignoring you try to do it face to face and not over emails and text messages cause things might get twisted up. just get your man back girl

That's a tough one. I would actually be bitter about that. I would be most upset because the guy didn't have the balls to be honest with me and tell me that he wanted to break up. Maybe he wasn't interested anymore, but he definitely needed to give you some closure and at least tell you to your face it was over. Lord, he could have even called you, even though that's lame too. If I were you, I would be bitter for a little while, but don't let it consume you. Obviously he wasn't man enough for you and sounds like you are better off now!