他说会一辈子疼我她说会一辈子爱我
[tā shuō huì yī bèi zi téng wŏ tā shuō huì yī bèi zi ài wŏ]
Expresses a promise of eternal care and affection. The phrase implies someone received vows of perpetual love and care from both their male and female partners or loved ones in life.