爱你是孤单的心事得不到也不要乞讨
[ài nĭ shì gū dān de xīn shì dé bù dào yĕ bù yào qĭ tăo]
This expresses loving someone while being aware that this love may never be returned, yet preferring solitude rather than begging for it. ('Loving you is a lonely secret; even if I cannot obtain your love, I won’t beg.')