Quite frankly I would suggest not concerning yourself with him if you've split up, I mean both of you should beconcentratingon moving on from each other right now, regardless of how you think he feels.
To show he's not interested in you, he'd basically not show he's interested in you:
-He could talk to you less, or in a more "friendly" way.
-He could be spending a lot of time in the company other people he sees as potential future partners.
-He could have visibly moved on with his life.
These are not 100% tell tale signs, and I have no idea what situation both of you are in, but as I said before; realistically if you guys have split up it shouldn't matter how he feels about you, that part of your lives is over.
Chris Perez
sexual seduction
If you Ex tries to contact you again and again without any reason, then it means he is still interested in you.
lee sungmin
tell him that you love him but if you choose her over me then it's over
Chris Webber
Nothing. They are perfectly entitled to remain friends. You only need to worry if they start behaving as if they were together again.
Justin Bieber Taylor Lautner
No, they are an ex for a reason. Its time to move on.
Because there is a reason you loved him in the first place
his name is nick Jonas and he has culry hair if u want to know that bad just type in pictures of nick Jonas at Google.com
They are friends!