Most Helpful Girl
Just because two people Break up doesn't mean they can't ad don't Make up and that it's Goodbye, my love forever. And with an "EX" who still Marks his X in hi sown softie spot, there is usually motive in mind when it might come time when He------Out of the blue get an Instagram request from him.
In your case here, dear, he is Obviously Missing the Kissing and the history you both used to share and the cozy comfort you and he had together. You know his past track record and many times over, as you know, a zebra will not change his stripes... you gave him that chance and he blew it.
I believe he probably wants to get up with you and not be hooked at the hip but probably do a Friends with benefits factor with you. He may want you part of his life without all the strife and if he gets you to play along, this may be what song he will be serenading you now.
Don't be so quick to wear your heart on your sleeve. You have move don, you have a new life of your own, so really... why get those sleeping dogs barking up the wrong tree again.
It's your call, your choice but as they say... Why fix what doesn't need to be fixed?
Good luck. xx