Having Enemies is:

The inability to cope with a person(s) who represent a threat. or who manifests hostile opposition toward you. God's love and peace is not present.

The Word of God teaches us not to become bitter, hostile, or vengeful toward another person.  If we do, we become the losers.  We might not like what others do or say, but we must gain love for them as Christ commanded. Matt. 5:43 demonstrates how we can act. Love those that hate us, rather than react in retaliation. The need is to identify Satan as the source of contention (Eph. 6:12) and God as the answer (Gal. 5:22-23)