Attachment is related to aversion.
The more there is attachment, the more there is a possibility of aversion. It is hard to be angry at a complete stranger. It is also why betrayal is most likely to cause one to seek revenge.
Ignorance is not seeing the danger inherent in attachment. Attaching to romantic love, life, health, fame actually means attaching to the opposites of hate, death and sickness. Due to impermanence of all conditions everything is inherently unstable. These things come as a package. You can't have one without the other.
And what is right speech? Abstaining from lying, from divisive speech, from abusive speech, & from idle chatter: This is called right speech.