out of sight, out of mind; better to be ignorant than to know the upsetting truth; to get rid of something or get out of a situation quickly to minimise loss
two people are normally behaving well together, but once they have an argument, their attitude will become very bad; friends turning into enemies after a dispute
describes a person being inconsistent (changing of mind) and / or who often does things secretly; can be used to describes a man who is homosexual (gay); a jerk; someone who is two-faced