I Don't Say I Love You Unless I Mean It

One of exes used to tell me he loves me all the time, even sent me a birthday card which even had "I love you" message. One day, he started to behave oddly, blaming everything on me. Then he avoided me, blocked me on Facebook, Whatsapp and other social media. I used to think it was my fault that he left. Then after one year, I contacted him again. I asked him why did he break up with me, he said we weren't even going out. It was me who thought we were lovers and took things seriously. It was my turn to avoid that d*ckless creature whenever he tried to talk to me.