Complex sentence: Man-Tin Tsz was sued by Kam Mei-Tsun's ex-boyfriend for hitting him in the face, throughout this time period, Man-Tin Tsz and Kam Mei-tsn saw affection for each other and started dating.
Split into simpler sentences: Man-Tin Tsz was sued by Kam Mei-Tsun's ex-boyfriend for hitting him in the face. Throughout this time period, Man-Tin Tsz and Kam Mei-Tsun saw affection for each other and started dating.