rationalism, logic and human existence

i dont know a thing abt any of the word used in the title of the post. or should i say, i dont understand at all.
consider for example, both ur twin sister have been kidnapped by a saddist. he promises to release only one of them, and kill the other brutally.
whom would u chose to save.
can rationalism prove that rational thinking is rational? while irrational thinking can prove irrational thinking can. dog is black and moon is round. so rational thinking is rational. and irrational thinking is best.
when we fall in love. there is no reason we fall in love. yet we conjure up reasons. isnt that how science works.
what is the purpose of human existence. nothing. what is better - dying as a begger, or dying as a multimillionaire who has served millions of people. neither. i dont opt to die. if both are dead, what does it matter how they lived.
dont want to write a thing, because i should concentrate for my big day tomorrow so,leave the post incomplete......that gives it a sense of completeness
and yeah....
let this be madness....yet there is a method in it...


PS: the post is complete. the idea of incompleteness is just to showcase how we leave out the most important questions of life for the sake of mundane human affairs!!!