Why do you have conflict with others? Usually it is because you have someone mirroring for you something you do not wish to see. You give so much energy to personality issues, likes, dislikes with those around you that you tend to forget to look at yourself! This life is not about you being concerned about others, but of living and learning your own life lessons!
You and you alone are responsible for your own reality and life, but often you are so entrenched in others lives you cannot fulfill your own life or lessons. Perhaps in a past lifetime they hurt you, killed you or did harm to you, usually they have come back to make up for that misdemeanor, but all your soul remembers is the energy of the person and cannot let go of that. Perhaps they have chosen to mirror for you what you find so hard to do, yet again you are afraid and do not want to know. The karma never gets addressed, and so the energy has to be played out again in another reincarnation.
Everyone who comes into your life does so because you or they, have chosen to be there. Let them be there; do not judge them. Ask yourself, “What do I need to learn from this person?” You will eventually find the answer; if not visit an Astrologer, and have a compatibility chart done on you and the person you have conflict with, the answers will lie there!