Hi Enn,
Your ex may still be flirting with you, wanting to hang out and asking for hugs because he doesn’t want to see you with anyone else.
He may know that when he acts in this way, you will keep wondering whether he still likes you or wants to be with you.
He may be protective of his ego to the point where he just doesn’t want to see you with someone else.
As long as he knows that you are still thinking about him, he feels that he can have some kind of control over your love life.
This kind of behavior doesn’t necessarily mean that he still has feelings for you.
Being that he has dated his current girlfriend for just over a year and is committed to her, there is a good chance that he doesn’t have feelings for you.
Again, he may simply want to keep you single so as to make him never have to worry about some other guy getting your attention.
As long as he gives you the impression that there is a chance that the both of you could get back together, he knows that he can keep his ego fed without ever having to return to you as a boyfriend.