我自恃无敌却深知你不爱我
[wŏ zì shì wú dí què shēn zhī nĭ bù ài wŏ]
I thought I was invincible but knew deeply that you don't love me. This shows the internal contrast between self-confidence in appearance or ability and the sad awareness of someone else's disaffection, indicating a vulnerable side within strong pretensions.