Eunho went though alot trying his hardest and proving again and again that he loved Jaeha since childhood and well into adulthood . Once Jaeha started to realize all Eunho wanted was his everything flaws and all, he realized that he could be happy. It was Eunho that was there though the happy and sad times waiting. Eunho had to move on with his life and grow up a bit , still he never forgot his first love. Being alone gave Jaeha time to see what life could and would be without him if he continued to run away from problems instead of facing and resolving the issues.
He's ready to be loved finally and everybody wants to be loved, it just takes work .
Lover Boy