The place of intimacy

Most people are talking about love and sacred feelings they have towards each other. Everyone says that love is the greatest value and intimacy is of no importance in case there is love, but indeed people are acting the different way. They fall in love and they know it is a person they were looking for and they have relationships and so on. They have relationships and everything is great with those except…except the intimacy. One feels that it is not enough of something in their sexual life and people are going someplace else looking for that something they miss. They cheat on those people they love and they do it all the time looking for sexual satisfaction. People betray those they love and those who trust then for the sake of sexual satisfaction. So, tell me know of it is love people really care about? I guess such a behavior has nothing to do with love because people betray love for the sake of sexual satisfaction and if it is so than intimacy but not love occupies first place in relationships of people. So, what you were telling about we are different from animals?