Btw;
The counselor thinks he is fine under the circumstance
Says my son is making me the bad gut right now, because a) he trusts me most to nit leave, and b) because his mind may otherwise blame himself for daddy leaving, and it's better to blame me than himself, psychologically speaking, because when hd gets older he will be able to correct that thinking with logic, whereas if he blames himself it could become a pathological issue.
He will be fine, I think. It's just got to be a matter of rebuilding trust through consistency.