I Hate It When People Leave In The Middle Of A Conversation

Damn it...Why does this always happen? I finally find someone to talk to, we talk for some minutes and then, they suddenly disappear...their online indicator is green but they don't answer...I look at their replies or general replies and see their name...so they are very much active...I wait...10 minutes, half an hour, an hour, many hours...still no answer...but they keep posting and replying...thanks you people...so nice of you...