no, How can I convince him that 4a isnt ugly? I dont want to be with him. I was saying it is disrespectful to me.
It isn't YOUR job to education him. He believes what he believes and you can't change it. You are really fighting an uphill battle.
I just have a question for you: Why is it so important to you to prove 4a hair isn't ugly? Let's just say he no longer finds it ugly, what is in it for you? IMHO nothing because he an ex and you do not want to get back with him, according to your post. Again IMHO when a person puts in a lot of work toward a goal, they usually want some return. I find it odd that you are stating over and over again that you don't want nothing. It just doesn't make any sense to me.
BTW from your avatar you do have GOOD HAIR, nice healthy looking hair.