When you initiate a conversation with a girl/or she initiates but you just vaguely know her. Maybe she goes to the same school as you or she is a 3rd friend whatever. Usually the intent is to have a romantic relationship you know she is gonna be talking to her friends about the new guy she is talking to and you’re gonna be doing that too.

Then why do they end up flaking/ghosting/friend-zoning?

I have had both the situation one where a girl slid into my dm’s on Instagram and we started talking to her friend zoning me vs a girl I texted showed strong intent and ended up friend zoning me.