摸不透内心的感受猜不透内心的执着
[mō bù tòu nèi xīn de găn shòu cāi bù tòu nèi xīn de zhí zhe]
'Can't feel the true emotions, can't understand the real obsession.' Here, the netizen uses a way to express that they are difficult to be read or have complicated inner thoughts and obsessions that others cannot easily fathom or interpret.