Ex boyfriend and ex girlfriends can vary from easy-going to super annoying. I would suggest if the communication is unwanted tell him/her. Direct communication from your part in order to get direct no contact should work. However if your ex is the type that doesn’t take no for an answer, than block them. I think adults should be able to say hey I moved on and so should you, but if that doesn’t work you can’t stop them from calling but you can control what you answer.
One you block an ex, leave them blocked. It doesn’t always work out. My husband was an ex at one point but I wouldn’t suggest people going to their ex just because it happened to work out for me. There was space and time between us to work ourselves out. However the mere fact that you don’t want contact means you need to close the door altogether. If for some strange reason, you find your ex, blocking their number to contact you, or making a page on social media to follow you, please note that you may need to reinforce the I am not interested in anything anymore. If need be for safety reasons, police contact. It would be nice to think that just like back in the day where you could break up, be mad, call your girls for a night of fun, or call your boys for a night out and move on. There have been a lot of violence towards men and women during the break up phase. It doesn’t mean it will happen every time, but you have to be able to make safety your number on goal. Be an adult!
Also there has been times when I have had to get a male family member or friend to step in to assist. Whatever you do be sure to close the door. IF you really are done, be consistent in ignoring messages. Do not play the games when your mouth says you’re not, but your actions say something different. Say what you mean and mean what you say. It’s never a good thing to have to end it, and even in times when you feel like you have to be with this person, do what’s best for you. End it if you are done, and make an attempt to work it out if you can. Note that not all situations will be saved. You may always have much love for an ex but your lives just aren’t meant to be. That is okay. Speak authentically to your previous partner and voice your desires, to be left alone. If you find yourself and you are reading this to be on the other side where your previous partner has asked for space or has told you they aren’t interested, leave them alone. Ain’t nobody got time to convince you to respect folks’ space.