大概他温暖所以我姓梁
[dà gài tā wēn nuăn suŏ yĭ wŏ xìng liáng]
A pun using the similarity between the surname Liang and 'coolness/temperature' with the opposite meaning conveyed here as 'warmth'. The username loosely means 'maybe he was warm so I ended up with the surname Liang (which typically connotes coolness)' — highlighting the interplay of warmth in relationships.