It's explained later in the novel. His first love was not the sexual kind. It's the same as falling in love with your elementary teacher who made you happy, your first friend or your first pet.
It was not the sexual kind. Yuri explains it to Xinlu when he was frustrated how although Yuri claims to have loved him, he never sought out to him.









Whether I get into this one or not depends on the twins. Did they...?