Tell him you want him back and if he doesn't want you after that then find someone else.
Instead of looking for signs how about you be the bigger person and actually ask.
je retourne vers mon ex petit ami.
YOU SHOULD'NT WANT HIM BACK, IF HE HAS MOVED ON YOU SHOULD TOO. A MAN SHOULD RUN AFTER THE LADY YOU SHOULDNT RUN AFTER HIM. IF HE COMES BACK THEN ITS MEANT TO BE.
Just be honest with him & tell him how you feel if you want to get back together.Ask him if he likes you tell him you want to get back together & be patient with him.Or you could just bang him.
It just means that you miss him and want the relationship back. It could also mean that he's thinking of you as well.
It is unfortunate that you were cheated on and then he left you but it may be the best for everyone at this time if you parted ways as it seems he is not ready for a committed relationship.