I wish you a happy birthday tomorrow! I’m sorry to hear about the verbal abuse at work. It certainly doesn’t put you in the mood to celebrate. Does your company or manager have a policy about verbal abuse? A healthy workplace would support you and refuse to serve this client.
I would agree that beauty is in the eye of the beholder. That you have a girlfriend tells me that she thinks you are beautiful.
If you don’t want to tell her the details, that is fine. But I hope that you tell her you had a bad day and that a client was cruel to you. I’m sure that she would love to support you and cheer you up. I hope that you feel better tomorrow, you deserve to have a special day!