大概是你喜欢轻浮而我姓陈
[dà gài shì nĭ xĭ huān qīng fú ér wŏ xìng chén]
Translates to 'Probably you like someone flirtatious while I am Chen'. It's a bit complex and somewhat self-deprecating. This netizen may be suggesting themselves to be rather conservative as their surname is Chen which also refers to something old, plain or serious by traditional definition.