Alexandra Marinina. Coincidence (№ 393533)

If the person is secretive and reticent, why would he lie and pretend? This is a huge expenditure of energy. Easier not to say anything. Secrecy and isolation, and outright falsehood are two different ways of achieving the same goal: not to allow others to know who you really are. Not open. Usually a person picks only one way, depending on their nature and style of thinking. Both don't mix.