My ex found new gf

I found out my ex got a new gf. They got matching nicknames in a game just like we used to have. It crushed me, I have no will to live. Even though it is been 1,5 years since break up I still feel so much pain. He was my first love and I feel like I will never find such an amazing person in this life. I still blame myself that I broke up with him and regret everyday.