He has loved a person for many, many years, waited for many, many years, and hid for many, many years.
It turns out that the so-called love in his eyes is just a tool. Just like in the novels he read before, there is always someone who is cold and does not understand love. Unexpectedly, he meets and falls in love with him. So he's hurt.
So he left, decided not to love anymore, and destroyed the love in his heart. This way, you will be safe and never get hurt again.