It makes sense you're feeling the way you are because he has betrayed you in more ways than one. The anger will eventually fade away, but it's a difficult road to recovery after many betrayals of trust. He is abandoning you after you stuck by his side.... be thankful that he is, though because he would continue to hurt you and harm the trust. He cannot be trusted and has proven that to you more than once. So be thankful he wants it to end, because ultimately, he is saving you. There are trustworthy men out there.... but being single also has it's own set of benefits and joys. You can find yourself again and rebuild yourself and your life however you see fit. Think of this releasing of the relationship as a blessing rather than a curse. It's an opportunity to grow and learn and to become happier. He is doing you a huge favor. It may not feel like it now, but it will years from now and perhaps even months from now.