You have had a terrible shock and the pain and hurt will be with you for a good while but you will learn to live with it, you have to and I hope in the future you will be posting and telling us how good life is and that you are back on track and getting on with your life.
Keep your good friends close and they will help you.
However, if you get back together again that would be great as I am sure that is what you really want and I hope you can both sort it all out.