I just need to tell someone that I still miss my ex.
That must be hard on you. How long has it been since you've seen your ex?
Too long, but I just want to say that I miss them.
It's understandable that feelings still linger around a past relationship. However, you should strive to move forward so that you can be happy. Holding onto feelings after a failed relationship will block new relationships from being successful.
No, I don't want to move on.
You don't want to feel like that forever do you? The sooner you decide to move on, the sooner you can find happiness again.