I'm sorry you're hurting so much. It. Just. Hurts. To feel used and abandoned and then have it paraded in front of your nose. It hurts.
But it isn't who you are, or what you are worth, or the life you could have. It's just a feeling from your present circumstances, which are changing rapidly and in flux.
The hurt will not persist forever if you seek who you really are and what you are really worth, and do actions toward that, even if you don't feel like it. It will take longer than you want it to, and be hard work, but if you persist you will come out the other side and feel happiness again, in a way you never imagined.
Sending encouragement,
CLMI