Most Helpful Guy
Well this is a tricky situation, the quick replies might mean he likes you and he is interested in you, but ending the conversation might most certainly mean that he does not want others to know that he is interested in you! Well i too end telephonic conversations abruptly if someone comes near me while talking, but if i am not disturbed i might end up talking for hours!! So the final line is that he most likely like you! so go ahead!! enjoy!!