Lu Li loved Gu Xinghe, but after Gu Xinghe got his partner, he hid his love. In order to prevent him from discovering it, he deliberately stayed with their mutual friend Tang Linghe.
Tang Linghe was reluctant to leave Lu Li. Even though he felt like a mirror in his heart, Lu Li only gave himself the tenderness he gave to Gu Xinghe. He was just Gu Xinghe's substitute, but he was still willing.
Later, Lu Li fell in love with Tang Linghe, but he had no chance to tell Tang Linghe over and over again, I love you.
Intention: My love is unreserved