People who bully are the unhappiest of people. I bet she will remember that she bullied you, because they pick a trait that they are envious of. Mine was my red hair, the person who bullied me stuck a great big lump of chewing gum on the top of my hair, so needed cutting to get it out. Ten years down the line, I bumped into her, we got talking as she knew my friend, I realised that her hair was dyed copper, cut into a bob- she must have realised I was looking at her hair & said “ always envied your hair”. I just smiled & said nothing.
Don’t be a shrinking violet, throw your head back, laugh & show her you are having a great time. I wouldn’t say a word.