Most Helpful Guy
It is natural to miss someone, even tho you know they are wrong for you. The important part is that you realize your new love is right for you. AND DO NOT SHARE YOUR MISSING YOUR EX WITH HIM!
This will hurt him and cause him to think of the current situation.
These feeling will go away in time. Why your thinking this way is because you see your Ex as you wanted him to be and are wondering why is was not like that with you. It is over, the past is the past.
Enjoy the person that makes you happy now. Or you may let the best thing slip away from you.