Why does burning gl Blue Mountain kill you?

The reason why this character will die is mainly because of his deep love for Zhou Xiao and the unbearable pain of losing Zhou Xiao.

According to Li Li, Blue Mountain committed suicide in the burning. The love story between Blue Mountain and photographer Zhou Xiao originated from a one-night stand. The Blue Mountains love Zhou Xiao, but they dare not say "I love you" to Zhou Xiao because they are afraid of losing and don't want Zhou Xiao to leave. Blue Mountain feels that these three words are equal to losing Blue Mountain and loving Zhou Xiao. Finally, Blue Mountain committed suicide after tattooing flamingos on his ankles.