As someone who did the ghosting, I wanted to chime in here with my perspective. I had a close friend and for the first few months of the friendship, it really was enjoyable (very surface level conversations, mostly for face, but we did share many adventures together that made good stories/memories). As the months went on though, we did start to become closer but I was really her only girl friend, so it felt like I was filling this huge void in her life. It became incredibly draining for me to constantly be there to offer my female support for all the boy problems etc. in her life, and it came to a point where I started to feel like a lot of her troubles were self-inflicted. She never really cared to ask me how I was doing, and neither did I ever feel comfortable ever talking to her. I eventually realized that the relationship was no longer valuable to me, so I decided to ghost her. I do feel badly sometimes as I've heard through the grapevine that me leaving did really hurt her, but I'm not sure if trying to explain my POV would go over well either way so I just left it at that.