Have been left for someone else and now I feel numb, alone and unwanted.?

You poor thing. You know, this sounds like me about two years ago and for that reason, I sincerely empathize with you. There we were, five years together with property and everything but he walked out to be with a women he knew six weeks. I too felt the same way you do and trust me, it's a horrible feeling. But all I can say is that time will heal. You will move on and love again. My advice to you is don't blame yourself, it wasn't you. It's them. They lied, they cheated and they are the ones who will be sorry when karma bits them. Please don't blame yourself. Feel sorry, have that grieving period but wake up one day soon and think "good riddance to bad trash". Remember that people will advise you how they will, but until you have lived through this trauma, no one will ever know what you are going through. I found out about three days ago that my ex married the women he left me for, but that didn't bother me. I know that I learned from my mistakes but he hasn't. He's still blaming me fir everything that happened. One day you will get to this point, you will just laugh at the news she is married thinking " what has that poor person got themselves into" while you will be the happy one. Smiling. Laughing. And looking back on this as mery a blessing. My thoughts are with you.