深爱是一场无休止D犯贱
[shēn ài shì yī chăng wú xiū zhĭ d fàn jiàn]
This username expresses a self-deprecating or exaggerated view of being in love, suggesting it's endlessly causing oneself trouble. The letter 'D' might be an English stylization that young people sometimes use to make the phrase cuter or trendier. The whole idea is somewhat similar to phrases like 'love makes you suffer.' It is often used as a kind of ironic humor rather than meant to be taken literally.