我是很花心但我只爱你一人
[wŏ shì hĕn huā xīn dàn wŏ zhĭ ài nĭ yī rén]
This online name expresses the sentiment of being 'playful but exclusive in love'. Despite seeming to have a wandering heart ('very fickle'), the netizen emphasizes that he/she only loves one person. The phrase combines contradictory feelings which makes it catchy and meaningful to express a strong affection or commitment.