She is tinkering with droids again.
He feels her elation as she finds the right point on the circuit, watches the droid whir to life, bleeping its gratitude. She has a whole little family of them now. Droids with loyalty so fierce he wonders if all creatures sentient – and not – are bound to worship her. He is losing himself in her and he knows he needs to stop.
Kylo Ren is Bound to Rey and hides from her, never revealing himself, quietly driving himself mad with her light.