恕我无能伴你长久
[shù wŏ wú néng bàn nĭ zhăng jiŭ]
Seek forgiveness for lacking the ability to stay with you long term. Expresses self-deprecating apology and regret for inability to offer commitment or lasting companionship, suggesting some constraints, whether they're emotional capacity, circumstances, or responsibilities, preventing sustained presence in another’s life.