Your post sums up why I hate email contact with my therapist. I wish I had never accepted her offer of email contact. It's fraught with boundary issues and the potential for being hurt or disappointed or angered is always so present.

The fact that she was on holiday is not for you to consider;it is her responsibility to tell you that she is not available for email contact. Not receiving the affection you craved when you reached out to her (and the ensuing feeling) is prime material for a session. Email contact is really hard because there is the possibility of the therapist providing some care, but it is so easily unfulfilled.