Why Does Someone Move So Fast at the Start?
Speed at the beginning is almost never about you. It is about a gap somebody is filling. It happens because of: 1) intensity standing in for time, a run of long nights and constant contact mimics months of history and the brain accepts the substitute 2) commitment escalation, enormous early declarations are cheap to make and expensive for you to walk back from 3) the halo effect, because once someone is certain about you, you stop checking anything about them. Nothing good needs you to decide this week.
The pattern
Intensity imitates real time
Big words cost them nothing
Your caution gets framed as coldness
Real interest survives slowing down
How the temperature moves
Slow it down by two weeks and see what is still standing.