I would like to hear her side of the story.
I can sympathise with you tho.
However if you do not live life for yourself and start living for others it makes it difficult to love you for who you are (becoming).
You have made errors and sometimes so much that people just dont want to have anything to do with you.
Now you are not even in love with a person anymore. You dont see the person for who she really is and what she wants
you see your dream scenario and plunge after it like the alcoholic after a bottle of vodka.
I know you feel empty inside and that it sucks. One of the worst - possibly the worst - way to feel.
It will diminish in time. Especially when you love life again when you learn to forgive yourself and live again.
I would strongly suggest as said above that you go see a therapist or doctor AS SOON AS POSSIBLE (now)
and get some medication for a start.
Relax a little.
You life is going on (althoug it feels different now)
and at some point in the future - i personally guarantee it - will you be glad that you are alive and that you can love again.
I have went through it. And I can tell you: leading a life filled with love is worth the pain. Even if sometimes our love is not repeated back to us anymore. Even if it doesnt feel for you that way right now.
Also: if you want to try and get her back (which i would not advice - but regarding that you wont listen to anyone anyways) then the first thing you must do is to calm down and start feeling ok again. Its hard to fall back in love with a nearly suicidal negative ex boyfriend in anycase.
So get a move on and get positive.
Go to the doctor. Go running, do sports, sleep, scream, have sex with someone - whatever helps.
If you think I am insulting you with my post or bashing you: You do not get the point.
I am not here to insult or bash anyone. I offer up my free time to help. Take from my post what is useful to you.
If you are angry about my post or myself, then please stop and think how that happened. Usually that is the way the brain responds if a critical belief system is challenged (its called cognitive dissonance). If you have trouble with it please answer in the thread. I will come back to you.