I don't believe in it either... its just human nature? There are probably situations in which they just can't love the person....... unconditionally
love can be unconditional but in different situations... Nowadays, very very few people i guess loves unconditionally... but for me it really exists... ^__^
national heroes died for their country did it... it is more on being true to yourself and proving it in nice way, that time will come you've done will be high appreciable