私守給n1的承诺私守給n1的誓言
[sī shŏu gĕi n1 de chéng nuò sī shŏu gĕi n1 de shì yán]
The user commits himself/herself exclusively to fulfilling the vows and promises he made to a specific beloved one referred to here as 'n1'. 'N1' commonly appears online as slang for 'Number 1' (one most important). This phrase reflects loyalty towards promises even if these have changed since then; however sometimes they might become impractical because reality differs too much.