My GF of 5 years out of the blue on

My GF of 5 years out of the blue one day broke up with me. It was truly a shock, I didn't even see it coming. It turns out, there is someone else. From my own research, this person has not been in her life very long. I don't know how or when they met, but suddenly I am out of the picture. Our relationship has been through so much. My year long deployment, the death of her mother, and us taking care of her disabled sister. I just don't understand how this came to be. And now she's gone away with this other person for the weekend. It's been a month now and I'm still hurting as if it was the day of the break up. I have this knowing inside of me that she is my soulmate, my one and only. I waited my whole life for her. I always had a feeling since I was younger that I was only meant to be with one person. I dated but never felt anything for anybody. Not until her. I WAS 26 THEN! I waited for the love of my life, my first and last for 26 years and all of a sudden it's gone. Our relationship had it's share of struggles, and I by no means would have won gf of the year. I know it might sound corny, but everything inside of me is still telling me that we are meant to be together. I had to let her go so we could both grow and experiance things and that life will eventually lead us on the same path again.