Delphi

I'm sorry to say this but if he had a secret email account and was emailing girls then it was planned and premeditated deception. Meeting an ex while away from home is accidental and even if he took it too far it's kind of understandable. But the emails?

I suspect there is something going on in his head that he is not talking about. Maybe he loves you but doesn't feel ready for the full family commitment thing. Perhaps you should consider counseling to get to the bottom of it.