From a child to an adult, aesthetics have changed, tastes have changed, and thoughts have changed. The only thing that remains unchanged is the heart that even oneself cannot control.
From high school to college to society, the environment has changed, the identity has changed, and the way people behave has changed. The only thing that remains unchanged is the desire to desperately want that person.
I want to assimilate you so that you can't live without me and I can't live without you...