Yes you are absolutely right normally love at first sight easily fade in the dust of time.. Here people marry on the behalf of parents.. No doubt problem also arise in such relation also but families support both help them in solving issues and stop them to be so agresive to divorce.. Divorce cases are rare.. Once i read a quotation of a wise man named abu al aala modode.. He said the first few years the in the marital relation love is due to sex or need.. After that few years are that in which you remains calm with need base love but after 8 or 9 years the actual love start to develop between couple and with time it goes strong and strong.. I think i forgot some exact quoation but its true after 8 or 9 years of living together we understand each other well and problems are solved feelin of love become strong.. Best of luck dear may you found your true soulmate a true lover a true nan who respect you with depths pf heart...