A good friend shouldn't quarrel with you about silly unimportant things.
A good friend should defend you if someone hurts you.
A good friend shouldn't betray you in difficult situations.
A good friend should support you if you are right.
A good friend shouldn't support you if you are wrong.
A good friend should appreciate your advice.
A good friend shouldn't follow your advice in any case.
A good friend shouldn't anvy your success.
A good friend should avoid conflicts with you.
A good friend should cheer you up.
A good friend shouldn't ignore your interests.
A good friend should care about your feelings.
A good friend shouldn't feel jealous if sometimes you are more successful.