Moving in together is different from dating while living in separate abodes.
Moving in together means that the pair are in each other’s space, round the clock.
You are sleeping in the same room, using the same toilet, eating at the same dining table, cooking in the same kitchen, sharing the same driveway or garage, etc.
I guy who wants to elevate or maintain a relationship does everything in his power to keep it going.
Saying that he doesn’t know where things go from here is his indication that he isn’t intent on doing whatever it takes to keep the relationship going or elevate it to the next level.