Does this seem f!cked up or justified? I'm conflicted.

In exactly a week cause I'm moving back to my hometown since I just graduated. Thinking of leaving without saying goodbye to my college "bff". I put that in marks because it doesn't feel like we are. We don't even hang or talk like we used to. I can barely even get a text back. She graduated last year and works full time now. I totally respect she works and is in a relationship with the boyfriend she lives with.

My reasoning for wanting to leave without saying anything is because she says she's super busy with work so she can't reply and doesn't have time for anyone but yet she talks about going out with her frat friends and her bf. Or goes to raves with them. Get this: we don't even live that far from each other(10mins at most).Took her off Snapchat last year because she always posted stuff with the frat but never replied until later. Her excuse was always, "Omg, I just got your text, my phone isn't working. I don't get notifications." *eye roll*

If she actually wanted to hang out before I leave she would've contacted me already. She knows that I'm leaving and I've told her already. I've talked to her about how we don't talk much and she apologizes but nothing has changed. I've just been really disappointed/hurt by previous friendships this past year which is another reason why I just wanna leave town. I'm moving 6hrs away and I'm not coming back.

If you were in my situation what would you do?