Every true love or true relationship is meant to last for a lifetime or perpetually. In other words, any love or relationship which fails to last for a lifetime (perpetually) is obviously an untrue love or untrue relationship. Besides that, the secret behind every true love or true relationship is never enjoying or indulging in too much sex nor having too much money to spend. Yes! rather, the secret behind every true love or true relationship is nothing but self-sacrifice (giving up what you want or something you need in order to please or help someone else or others). That is it and that is that too IMHO in my humble (honest) opinion. ~Emeasoba George