I want to display all users data, who User 'A' is following. And then further check if User 'B' is also following some users of User 'A'.

I managed to get al users data, who User 'A' is following. But don't understand how to query for the second condition.

Here is my Fiddle link with an example: <https://dbfiddle.uk/?rdbms=mysql_5.7&fiddle=29a7d1e29f794a8f18a89fe45c06eaa9>