As long as Adam kept the commandment of God then he would live and he would be able to experience love and give love. The moment that he would disobey God then he would die.
Love is not a right but it is a gift that God gives. God is love and when we experience His love then we want to love others. We love because He first loved us.
Just as love is a choice and not a feeling, love is also a commitment to another person. Love chooses to commit oneself to another person. There are different levels of commitment for the different levels of love. The most intimate level of love is the marriage of a husband and wife. Marriage between a man and a woman is the only relationship where there is a oneness of spirit, soul and body.