...or discord, insta, Twitter, Snapchat, jeez, even Kik, Signal, Telegram, etc etc. Loads of alternatives for messaging someone you already know without all the crap that comes with using FB.
This. Avast far better than many paid for services (although you do get fairly frequent nag messages telling about some fictional/inconsequential issue that means you should upgrade - like your IP address being visible)
...and...
This. Best "post-infection" software. Always run if you've...