Most Helpful Guy
I think men in aggregate treat texting like email. I don't like one liners. I might take hours or a day to actually send a text back if I don't feel the last message had any urgency to it. Or I may not reply back at all because I figure I will see the person soon enough. And, I rarely ever text something first. for me it is first and foremost a tool. I use it to send a necessary message, wherein it is to important to wait to see that person. but not so important that it merits a phone call. I don't think I have ever texted anyone just to say hello or start a conversation.
Most Helpful Girl
I am having the same problem with a guy. but maybe you should once in a while say you have to go... then he will see that you've got stuff to do and he'll be more intrigued. also cut the convos a bit shorter :)