纏綿不已

缠绵不已
chánmiánbùyǐ
  1. to cling without letting go
  2. to pester without end
  3. to cling lovingly to each other

CEDICT

Entry Composition

1 纏綿 chánmián
  1. touching (emotions)
  2. lingering (illness)
2 不已 bùyǐ (used after a verb) endlessly; incessantly