Project idea

This is Not a messaging app per say. assume i was hurt by a friend who i am no longer in contact with but i have so many things to say to them and think about them often. I install an app, create a basic recipient (name, mobile number and optional pic). lets call that friend Carla. i have an empty chat that will never actually notify or send them any of my messages. I write my heart out in the chat and can keep adding to it as much as i want. on one day Carla signs up on the app with her mobile number, and still we wont tell her anybody has a chat for u... until she ever tries to write a chat to me. we allow her to create me as her recipient, and once she sends a message to my chat (which is empty on her side still) MAGIC HAPPENS. she gets a notification instantly saying something along the lines of "you and Sleek seem to both have some unsaid words..." and i get "you and Carla both seem to have some unsaid words..." and if we BOTH agree to open, and only then, do we get to see all of each others messages... (future messages after the Agreement go back to the same hidden state until this happens again) we monetize by offering an option to let a user see ur messages to them without showing u their messages - but only if they pay a certain amount of money that YOU specify for that scenario, and obviously we get a % as the platform.

Go, NextJS, Kotlon, Swift