I can't handle this very uninteresting situation
What's so boring about the situation?
I have no idea what they are talking about.
Maybe you should ask them to explain what it is they're talking about?  It might be something simple enough that they can break it down for you so you can participate in the conversation, and not be bored any longer.
I don't care what they are talking about.
I think you should stay and try to find out if this is important. Is it for school or a job or something important? If not then you should leave.