Hey there, sorry to hear about your being dumped. Not knowing either of you, it is really hard to answer that question. There are many reasons for people walking away from a relationship. It could have plain worn out. Also they could have found someone else. Either way, it sucks, and you have to deal with the pain, and learn to get on with your life. It is a challenge, but it does make you aware, of what being human is all about.