我姓贾却给了你最真的自己
[wŏ xìng jiă què jĭ le nĭ zuì zhēn de zì jĭ]
'I'm surnamed Jia, but I've given you my most genuine self.' The owner might be saying, despite his/her surname which means deceitful or false (贾 'Jia'), he has treated this other person sincerely, possibly implying there was no facade between them.