This could mean anything from that someone wants to continue the convosation in person or that your screen isn't big enough to fit the message in! 3 dots at the end of a sentence usually mean that the sentence can't be ended or there's another part to it.
Chat with our AI personalities
Square symbols in a text message usually mean the sender has made a mistake. Many mobile phones cannot read foreign characters or alt symbols, and the instance of squares is most likely that.
only be young.
it means caca
Kill myself.
I believe it means Private Message.