I am still in love with my ex and a part of me doesnt want to get over her?

I really felt almost the exact same thing about my ex. She was my sun too so much so i always sang the song you are my sunshine when i was around her. Every single day without her was a living hell for me when we broke up. I loved her with everything in my heart and dont get me wrong i still do and will always have some sort of tie or bond to her because she was not only the first girl i ever truly,honestly loved but we also had sex. It was pretty soon and i wish we had waited a bit but it happened and i loved her. Depending also on what you and your ex did the feelings may be different than mine. But if you have talked to her and everything between you has been resolved as much as you think they can be, just stay busy. Go out with friends, get a summer job if you dont have a job, maybe a summer camp if you like that kinda stuff, stay active. Because the more you are inside just thinking to yourself the worse it makes things. It was so bad for me I would wake up in the middle of the night in a panic attack. I never Ever cry but after this happened i cried like a baby every day until recently. And if she has moved on, it may be time for you to do the same. If you think your ready try meeting new people and making new relationships.God its hard i know but we all have to try and move on. Im still working on it myself. I hope it works out for you I really do.