Today is the day of lovers, Valentine’s Day, and although for many it is still an artificial date, many others love to celebrate the love they feel for their partner. Facebook wants to contribute, as in each holiday, and for that, it launches new features in Messenger for couples to enjoy this Valentine’s Day when sending messages.
The first function is related to those who change these days their sentimental status to “committed”, “as a couple”, “married”, “in an open relationship”, etc. All these, by indicating the person with whom they are related, will receive an alert to initiate a chat with that person.
As soon as they open the window, it will appear full of floating hearts to show that it is the beginning of a beautiful love story – or at least they imagine it from Facebook -. To more quickly access conversations with our partner, that contact will always be first in the list of chats and you can personalize the conversation with coloured texts
source- https://techviral.net/facebook-messenger-app-valentines-day/