I'm five, were you meant to dial seven?

Morgan met Jesse because of her mobile phone. He texted a cheeky message to 07657 234 562 instead of 07657 234 762. Stupid boy. Is he is really that stupid? He might be a player, arrogant, but will Morgan and Jesse continue to talk after they find out the conversation started by a miss-dial of one number? One digit can make all the different as can one sentence...