I agree to the author partially, as indeed often there are fake friends. But there are also introverts who as per their experience do not let their inner realm disclosed could be any reason. There are also many friends who leave certain cues as if to get closer but hesitant why they have left so - is it dump something or is to disclose then to check and extend further exploration the worth of friendship or friend. Indeed friend in need is a friend indeed. Yet many times two way interaction gets a research gap
which should not be dumped hypothetically but with certain continuity of thought in pace and in intervals of time in the space of friendship or as life partners. This is ofcourse often understood friends skip some other space to make space for some other thing - such fugitive kind of friendship is indeed illusory and may be dangerous too. So ultimate manifest friendship with clarity.