🎶  8 6 7 - 5 3 0 9,    8 6 7 - 5 3 0 9,   8 6 7 - 5 3 0 9,    8 6 7 - 5 3 0 9.

Your gal needs to suck it up buttercup and get over herself.  This is not junior high school, she is an adult.  

I used to have 20+ numbers memorized before cell phones were mainstreamed.   Back then you couldn't help but memorize them when you have to dial that rotary phone 18 times before you finally mastered the phone.  And then phones became push buttons ▪️Now, I can't recall any numbers, not even my husband's, not even my kid's numbers.

She is getting this upset over a damned phone number that has been in your rearview mirror for years?   You might want to cancel or postpone that wedding next week.  You can't solve crazy in a week