Doublespeak

When you are messaging someone back and forth and while you are writing a response their last message they send another message on a different topic. You realize the second message requires a completely seperate message to answer so you quickly finish you initial response and send it. Then as you start typing the second message the other person reads the message you already sent then proceeds to write a message back, ignoring the second topic of conversation as if he or she were talking to someone else. You respond in the same fashion and the two of you have two seperate messaging conversations at the same time until some point one topic is dropped or the messaging ends altogether.