Yully pulled what she could of his energy into her body.
He could see himself becoming addicted to the energy flowing between them.
If you are a farmer and work alone, you can only plant as much land as you can personally plow. You can do just a couple of thousand calories of work a day, consuming only the energy produced by the food you ate.
Think about this: Nearly four million exajoules of energy is absorbed by the earth's atmosphere, oceans, and land each year.
If not for Yully's fading energy, Jule would've stayed to make sure Damian's version of chat resembled his and not Dusty's, who was more likely to shoot first and discuss later.