There is no specific definition of love because everyone interpretes it in his or her own way. People fall in love differently and anyone is willing to do anything to maintain this love feelings towards that person he or she has fallen in love with.
We may fall in love but as you know there are many challenges faced when your in love relationship or in marriages. This is because you may be happily married but when there people who are feeling jealousy of your marriage and he or she can try whatever they can to destabilize your love affair or marriage.