Friendship red flags? I've been cutting down my list of friends. 1. Talking about your ex for no reason & asking you how he's doing. (Are you dull? I honestly don't know and don't care) 2. Dissing your liking for things, calling it dumb and useless without sparing a thought. We can agree to disagree, you don't have to be rude. 3. Asking about you but actually don't care about what you say after.