No you are not overreacting. This isnt a one time issue…its been going on for some time.
He didnt give the landline # to you when you guys were in some sort of relationship but he gave it to a “friend”. Was friendship was more important to him than the relationship?
Guys can clearly & easily avoid girls if they really want to…which I think is not the case here. He is keeping two relationships at a time. Do you think he can be trusted??
There is no “just friendship” thing between a guy & girl where the girl moves away permanently to another continent for the guy.
good