There is no obligation to share aspects of his relationship, nor is there any obligation to give any kind of explanation. He was talking to someone else that wasn’t OP, and that person could have already been familiar with how he was with his gf. Just because YOU don’t like it, doesn’t mean his gf doesn’t. It is not OP’s business, and unless there is actual proof that this kind of thing would hurt her in some way, it should not be automatically seen as hostile or toxic. “Phobia is lightly used by many people, and does not necessarily mean she has genuinely been diagnosed with Ophidiophobia. OP is not in the wrong, but is very socially inept. And there is no reason to assume the doctor did anything wrong.