不伟大做不到你幸福就好
[bù wĕi dà zuò bù dào nĭ xìng fú jiù hăo]
The name 'If I'm not great, I can't achieve your happiness' indicates a deep selfless feeling toward someone. This username reflects that if the person's greatness is required to bring the other happiness, then this user feels unworthy or unable to do so, yet wishes for that person's joy despite everything.