A few days ago my friend and I were in the middle of a text conversation when suddenly I was unable to send or receive messages from her. I turned it off, did a battery pull, a factory reset even, and nothing worked. I also could not call her. Whenever I text it says the message failed to send, and whenever I call I hear one dial tone and then three beeps. I could call and text her with other people's phones, so I don't think her number is disconnected... I ended up taking my phone to the Verizon store, and the person said it sounded like a block from my friend's side and that it may have happened by accident. I'm still not sure about this, though. Could it be a block from her side? Could I have blocked her by accident? I don't know, I'm hoping to get some answers please...? We both have Verizon, if that's relevant.