不挽离人不念旧情
[bù wăn lí rén bù niàn jiù qíng]
This implies 'do not try to retain someone who leaves and don't linger on past feelings,' signifying someone unwilling to be held back by former attachments or romantic entanglements, embracing independence and a fresh start. The person wants a break from previous ties without feeling weighed down by guilt or nostalgia.