Is AUTHOR wrong in the post ? POST : I had mentioned to a friend (steve) that I would be in his town for an event a week beforehand. I suggested that we just get coffee since I couldn't be there long, as I had to drive 8 hours to get back home. Steve said "ok sounds good", and we left it at that, I figured we could make plans a little closer to the time. The day before, I texted Steve "Hey I'll be coming into your town for coffee tomorrow, when are you able to meet?" and his response was 
"Oh I'll be with my grandparents all day", so I responded by telling him ok, I won't be coming through, a little bummed. Steve said
  "I didn't think you were serious when you brought it up the first time because you made it seem so casual". 
I asked if I SHOULD visit then, but Steve kept saying that it was out of the way to see him, that it was strange I would do this, don't bother, even though I had no problem with driving extra; Steve's my friend. 
I apologized for not communicating better and that I should've talked to him earlier, and that I would work on making better plans, but I never heard from him again. We haven't talked in weeks and he has ghosted me on every social media platform since. I texted him for his birthday and got left on read. Was this really poor communication on my part? Am I the asshole for making it seem too casual? 