I believe that consideration is the key to a healthy relationship. If you don’t think about how others feel, they will leave you in the end. When your friends are busy and can’t reply to your messages, you’ll be regarded as selfish if you keep after them answering to your messages over and over. Also your friends might be offended by your remarks which you think it to be totally fine to say. You should take a moment to predict how your friends will react to the words you utter. If it’s a little offensive, you’d better avoid saying it.