<human>: My (19m) ex (18f) broke up with me a couple of months ago and I can easily say it has been the worst summer of my life, but I'm edging along. We dated for 11 months, mostly long distance and I can say from the bottom of my heart I loved this girl more than I can put into words.

 In the end, she wasn't in love with me anymore (hadn't been for the last 2 months) and was just miserable so she broke up with me which is understandable. Since then she has had no trouble moving on, she's living her life, doing new things and is now a completely different girl than the girl I fell in love with...so my question is... why am I having a hard time with this? Why is it that I can't find any strength to move on from this girl? I still have such strong feelings for her and I hate it because she feels nothing for me.

Can you condense the text into a few key points?
<bot>: ex doesn't care about me anymore but I still have strong feelings for her, she's changed dramatically and I can't seem to get a hold of my feelings.