你嬉皮笑脸的跟我说爱她
[nĭ xī pí xiào liăn de gēn wŏ shuō ài tā]
It means that the person is saying in a playful manner, 'You’re telling me you love her with a mischievous smile.' It conveys a light-hearted and teasing tone about someone talking about their feelings.