You must talk to him. I know it's kind of scary, almost risky feeling to express your feelings especially since you guys haven't been dating all that long, but it is very imprortant to do to stop history from repeating itself. Chances are if he wants to be in the relationship he will hear how your feeling and fix that, and if he doesn't feel that way then you probably should break up, and that's when you can do that, but it isn't fair to do it without discussion. Good luck girl
All the best.