I'll never long for what might have been

I'll never long for what might have been
I'll never long for what might have been

I'll never long for what might have been
might have done表示对过去的推测（译为“可能做了某事”）或虚拟（译为“本可能会做某事（实际没有做）”）.这句话应该是取虚拟的意思.
直译：我永远不会期盼本可能存在的东西.
我觉得意思是说,不会对过去可能能够拥有（而实际上却没有拥有）的东西充满期待.也就是,“机会已经错过了,我不会奢望它再次来临.”