别得意他只是我爱剩的
[bié dé yì tā zhĭ shì wŏ ài shèng de]
'Don't be smug; he's just left over from my former loves.' This suggests a sense of indifference or superiority, downplaying the importance of an ex-lover, or hinting at numerous past romantic interests. Such a username could imply experiences with relationships or casual dating history.