Maybe it's just me, but I'm trying to understand how serious this relationship is when
1. He doesn't bring her on the trip with him.
2. He doesn't even talk to her about it beforehand to, you know, check to see if she's OK that he goes to Europe without her, for instance.
He just "phones" to say "Hey, it's me, I'll be in Europe for two weeks without you and without my phone on, see ya!" And he doesn't even try to make sure she got the message?
Seems there were two dysfunctional people in this relationship...