When two people fall in love at first sight they can not discern their partner's flaws.This is the reason why people say that love is blind.When people in love get to know each other they find out the differences in their personalities.This is the time when they decide if their relationship can survive or not.If there is a very strong fondness for each other the couple tries to overcome all the obstacles.Then in this case love can prove to be lasting feeling and people who are committed to each other can be happy for a lifetime.