Most Helpful Guy
Most Helpful Girl
You're panicking. Here you have a guy you've known your entire life and you loved each other and then things ended because life got in the way. Think back to when it happened and what exactly made you say "This isn't something I can handle". There had to be things going on that led to breaking up being the only solution.
Now he is with someone else. Understand that.
You cannot make him leave her so he can be with you.
You really love him? Because I know that with love comes selflessness and you should consider him in this and be a little more selfless by letting him go.
Focus on you. Do your own thing. Move on. Take a deep breath. Don't panic.