I understand you probably feel like this is the end, and with all honesty, you have persuasive reasons for that. Still, I also believe you deserve to know that with certainty. We all make mistakes, some are honest, some are stupid, so I'd say do not be so hard on yourself. Send what you have available to Kristina, and we shall see what happens afterwards.
At least it seems you're not holding onto unrealistic high hopes; hence, the only real surprice would be a happy end.
At least you now know that if you ever again run into trouble, it's vital to start making screenshots and save communications - just in case.
Keeping my fingers crossed for both of you!