Someone who is still getting over their ex isn’t fully emotionally available to you.
This means that the more you date him and become emotionally attached, the more susceptible you are to getting hurt.
No matter how into it he seems to be whenever he is talking to you or taking you out on dates, there remains a part of him that is emotionally compromised.
Although he believes he is over his ex and tries to reassure you of this, you can’t ignore the telling signs that he isn’t.
Plenty of people in your position come around to thinking about getting back with an ex too.
This sentiment is usually borne of loneliness and disappointment that someone new and better hasn’t taken an ex’s place.
You have spent a few too many Friday nights alone, watching TV and scrolling through your social media feed incessantly to kill the boredom and loneliness.