BuddyPress Favourite Notification
By default, BuddyPress does not inform the poster when someone Favorites their content. BP Favorite Notification plugin adds a functionality to notify the poster when someone Favorites their content.
Tested up to BuddyPress 5.1.2
It Shows live notifications of members on a BuddyPress based social network site. The user will get notified after any BuddyPress activity by users.