Facebook is listening

If you have Facebook installed on your phone I highly encourage you to delete it. I got an ad today directly related to a conversation that happened while I was not using my phone. So it was powered on but was not in use. Facebook was not in use. There is no reason for me to have received that ad, I’m not the target market in any way, I have not searched for anything related to it in any way. I’ve never seen it before today. Facebook should not be listening to us. I’m deeply appalled and disgusted. I feel violated.