Certainty

I'm terrified of the uncertainty of dating someone else, i hate the feeling, the possibilty that someone can break up with me at any moment for any/no reason, or even worse, just not tell me, just cut off all communications. this happened to me 4 months ago, my girlfriend, beautiful and kind as she was just stopped talking to me at all and never gave me an explaination, a reason; i developed attachment issues because of that but i managed to get past them and im over her now, for the most part, but i dont know if i can ever feel secure, safe dating someone again