你过去我来不及参与未来一起陪你走到底
[nĭ guò qù wŏ lái bù jí cān yŭ wèi lái yī qĭ péi nĭ zŏu dào dĭ]
The owner expresses regret over the past when he/she did not participate in the other person's life but commits to sharing happiness and sorrows with that person wholeheartedly in the future.