原谅我不会忘记你
[yuán liàng wŏ bù huì wàng jì nĭ]
'原谅我不会忘记你' translates into 'Forgive me, I cannot forget you'. It shows sincerity mixed with apology towards unbreakable memories attached to specific individuals. There's a tinge of regret for not moving on while expressing gratitude towards significant others