My "friend" moved away without saying goodbye. Should I drop her?

supervixxen
I've been friends with this girl since high school, and with another girl, we were a trio. We all went to different colleges, but stayed in close contact over all 4 years. I drove 4 hours to her "goodbye" party when she studied abroad and when my family moved one hour away from our hometown, I made numerous drives to go see her and our other friend to keep up our friendship. They never came to see me.

Since they graduated in May and I'm about to graduate, they were done and hanging out in our hometown while I'm finishing up my studies, which they knew. They did come down to meet me for a soccer game a couple of months ago and I told them my summer plans when asked. I said I was finishing school, interning and hanging out in my college town, about 2 hours away from our hometown. When I heard my friend got a job in Texas, I was happy for her and wished her well. It wasn't until about a week ago I saw on Facebook that she and my other friend met up for a "fairwell" hangout and was saying she's moving in a couple of days. Of course, the girl is smart and told our friend to take the picture down bc anyone (including me) could see it. But I was pretty angry she couldn't even make arrangesments to say goodbye to me when she's traveled to see friends all over AND because I've done so much to see her. She even drove 4 hours to say goodbye to her college friends! I just want validation that it's a good idea to not only drop the moving friend, but the other friend too. What would you do?
My "friend" moved away without saying goodbye. Should I drop her?
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