You should always pay close attention to the actions of other people, which applies also to the "lack of" actions. In this case, if he still felt the same way for you, he would've reached out to you already. Often what also happens in situations like yours is you do reach out, and if he's single at the time or with nothing else going on, he might take advantage of the fact you feel the way you do in order to seek out physical pleasure, which will no doubt make you feel even worse.
The best course of action would be to move on and start being selfish by doing things for you and focusing on yourself entirely, so as to avoid becoming too codependent on others. Dating is fine, but keep it light and if they aren't inline with what you want or don't seem as good as your ex, then don't spend months dating them.