可能是他喜欢温暖而我姓梁
[kĕ néng shì tā xĭ huān wēn nuăn ér wŏ xìng liáng]
It's more of a phrase than just an ordinary username, meaning 'perhaps he liked warmth, while my family name happens to be Liang (which sounds similar to warm, 暖). It could imply a romantic story with a person whose personality was like warmth.