Usually, it those who are stronger than a target that can spy on the target. But the opposite is the case with Stella.
So it is not an understatement to say that she is strange. The only thing that makes her actions a little bit better is that she was watching him in order to make sure that his process of advancing to the peak of the third mortal coil went well.
So he sent back a message to her, "I'm fine. Thanks for asking."
She replied, "That's good to hear."
Then she asked quickly, "Since you're fine, can we meet now?"
Before he could reply, she sent another text saying, "You promised to meet me after you reach the tenth transformation, remember?"
He sighed and said to himself, "I guess it is on me for saying I was fine. Not that she can't sense that I am fine. She was probably asking just to be polite."
After sighing, he said, "Let's just get this over with. Surely I can spare 10 minutes of my time to meet the person in possession of the so-called "God Physique."