I consider my relationship with Messenger separate from FB. Most of my conversations happen there. I've deleted FB from my phone, but I don't think I could ever go without Messenger.
I used to be like that. One day I just sent the same message to all people I still contacted on messenger saying that I was getting rid of it in one week and listing 3 alternate services people could use to contact me. Didn't lose a single contact and never looked back.
