不悲不伤我爱你不烦不闷我想你
[bù bēi bù shāng wŏ ài nĭ bù fán bù mèn wŏ xiăng nĭ]
Bu bei bu shang wo ai ni, bu fan bu men wo xiang ni translates to 'Not sad, not hurt, I love you; not irritated, not gloomy, I miss you'. This is a passionate and positive expression, where someone directly conveys affection without worrying about being melancholic or distressed.