Are you safe???

There are so many people who are in a relationship but are not 💯 faithful,I keep wondering why it is so..They would claim they love their partners but that won't stop them from cheating,why is it so???is it that the love they have for their partner is not much or what because seriously I don't get... This is a question that is meant to be answered by you all...So answer it.. Are you 💯 faithful to your partner????