Getting Someone You Love back!!!!

Well i do love this person a lot and they loved me, but feel i will not give them more time, because of school beign a priority or them thinking i dont care about what they have to say. Also her sister has cancer and her bf left because he can't deal with it he says and they have a 1 year old. So now she is always with her sister when she is not at work or school, but the fact is i did care and i did not want her to think i was trying to make her spend less time with her sister at the sametime i wanted to spend more time with her, but she does not see it that way. She seems to think i will be the same hardcore school guy that does not care enough, but i told her it would not be that way forever, and that school is done in 8 months and i took an extra semester to get stuff out of the way. Now that i have more time for her i lost the girl, and everyone says i have to show her i want to listen to her and she will be back. But that is b.s. and i heard the summer before she wanted to leave me, but was scared i would not want her back. Like is this a test then, or do you think her sister having cancer is putting more of a strain on our relationship and her not thinking i care caused us to breakup. Like she even threw me a bday, and came to mine and then broke up with me a week later. It's so weird, and the worst is she would kiss me so much and say she loved me. How do you fall out of love in one week from a 3 year relationship. And is it possible to rekindle a realationship like that?

well she also said that i did not make enough time for her during school even though i would see her at least twice a week and wanted to see her more but school was more intense. At the same time she wanted me to listen more and i never meant for her to think i was not listening, because i love her and there are times she makes me mad, but i know that will pass and i never raise my voice at her or swear at her cause i love her and want to treat her well. She feels that at the same time i won't change and be her prince charming like the first year we started going out, but i told her i would but she said she is scared it would be the same in a year where we hangout whenever and don't do much. I just made a slide show video of all our pics to a song and i want to give her it but at the same time i have heard from people she is stressed and has a lot of anxiety. All I want is to be back with her and hold her in my arms and let her know i will never let her feel liek i am not there. But i feel as it is too late. She said when we break upt hat she does not know if she will miss me in a week, 2 weeks, a month, a year, or 2 years. I feel like me not seeing her enough made her feel liek she can live without me and it sucks. Cause we always talked about living together and having a family. I just want my family with her cause she is the girl i have loved since i first layed eyes on her. It sucks to know she has fallen out of love with me but loves me she said and wants to be friends and would be sad if iw was not in her life. She also wants me to come to family functions and her to my family functions. Do you see a hcance of us getting back together or is that just her makign us friends? also at the past few events i have gone to with her inteh past 2 weeks she has tickled me and play punched me i feel like that is flirting and she hugs me before i leave or is that a show for the people around to make them think we are ok? I am just confused cause i never saw the breakup coming i know we were growing apart a bit but this summer i was going to show her how much i loved being with her with a promise ring and so many adventures and walks and me whispering how much i love her in her ear. It just sucks to lose that person you love. I feel like now i have to prove to her that i care just as much but at the same time flirt with her when i see her to make her realize i want her and not only as a friend. I also heard from her friends she just wants me to listen more and be around and i told her i would do that but she kept saying it was hindsight. any thoughts would be great and i dont want to know about moving on cause that would suck cause she means the world to me and i want to grow old with this girl and show her that life might be slow right now but the rest of it will be an adventure.