Most Helpful Guy
depends on who broke up. either way, no he cares at least a little bit and its kind of awkward to him to be in this position.
Most Helpful Girl
I think for most people there is that little tinge in their belly when they think or know that a person they were with might be with or talking to someone else.
It's pretty normal, and human to feel a little rejected and anxious in that moment if we are the one who is seeing our ex getting approached.
I'm sure it might bother him on some level, but does he really care? Well, that's hard to say. It would really depend on if he actually wants to move on and if he has resolved his feelings for you.
Everyone heals at a different pace.