I have got many experiences about keeping a relationship with others from the past periods of my life. some are positive and others are negative. Among of them, I really believe the fact that never judging a person only by their usual behaviors. Though as for most people, their behaviors are the true reflections of their mind, someone are good at pretending to be kind or honest when they communicate with others. In that case, you should be care about keeping a relationship with them, maybe thay have some special purpose of getting close to you. I don't want anyone get hurt from others. but it always happens. Sometimes you'd rather stay alone than intentionally keep a relaltionship with those people who not really like you. I think that making yourself stronger is the best way to keep a good relationship with others. When Noone can look down on you, you can also avoid being hurt from the false friendship or relationship. After all, envy has been existing from the beginning of the history of humanity until today. it's like an invisible knife hiding in eveyone's mind, at a proper moment, it can hurt others without any sign.