<human>: Can you condense the text into a few key points?

When I was 22 years old, I met this girl who I thought was incredibly beautiful, inside and out. She was from another state but was in this particular one for work. Long story short, we started hooking up 2-3 times a week. She hinted at her eventual move. She eventually moved to another state but before she did, she avoided me for one month before she left. I felt like things were going good between us. I felt like I would see her one last time and say my final goodbye, but that never happened. It has been over 6 months since she has moved and I still can't stop thinking about her. I have made no effort to try to contact her and she has made no effort to contact me. I don't want to appear needy or attached. My question is whether or not I should ask her why she stopped talking to me a month before she moved. It could be because she got bored of me, because she didn't want to get overly attached, because she found someone else, who fucking knows, but as of right now, I just want to know why. Is it a good idea to ask her, or should I just let this go? I am 23 now and she is 25. It was a short fling so I'm wondering if it even matters for me to ask her why she didn't want to see me? Anyone experience something like this? I would love to hear your opinion.
<bot>: Hooked up with a girl a year ago for a few months even though i knew she was leaving for good but I never said goodbye. Should I ask her why she never gave a goodbye?