Apart from love, what can bind two people tightly is hate, which is deeper and more intense than it.
It was an emotion that was more fiery and lasting than other emotions, like a thick cocoon or an open claw, piercing tiny fangs in their hearts. The venom secreted from the teeth mixed into the blood, slowly spread and dissolved, and finally became some kind of natural instinct in life.
In the end, even I couldn't tell the difference. Is that love? Is it hate? Is it a habit? Or just barbed chains used to maintain each other.