I cammed with a super hot girl online and recorded it, I love it
Please tell me you really didn't. Why did you need to record that?
Change of plans, I changed my mind and wasn't invited to meet her after all.
Whether or not it's legal, it's still highly immoral and unethical to record someone without their knowledge. Let the person know you're recording so that they are aware of your intentions.
I'll tell her I'm recording before I record.
I'm glad you are learning from the mistakes, but I believe you need to tell her now that you previously recorded as well to strengthen your relationship as there won't be any more lies. Just make sure she's okay with it and you can have fun.