Why did my ex contact me then completely disappear/ignore me?

Anonymous
I was with my ex for 3-4 months until he ended it a week after my birthday saying that "he couldn't see us being in a long-term relationship together". Even though I said to keep in contact, I realized that it wasn't a good idea and deleted his number, removed him from facebook, etc. All of the sudden on Christmas eve, a month after the break-up he sent me a facebook message wishing me a merry Christmas. I didn't know what to do at first, but I replied to it and asked him a simple question about his work. He didn't respond back to me and ended up "disappearing" off the map. What could this possibly mean? Is he having second thoughts, does he miss me? Sometimes I do miss him and sometimes wish that we were together again. Should I take this as a positive sign and sit around and wait to take action, or pass it off and move on.
Why did my ex contact me then completely disappear/ignore me?
6 Opinion