My girlfriend and I have had some troubles lately. She was unhappy because she felt like she cared more about us than I did. I feel horrible. I didn't wake up the other morning, when I was supposed to wish her goodbye before she left for the weekend. I messed it up. And that was a big reason why she broke up with me a few days ago. I want to prove to her that I absolutely adore and care for her and will never hurt her again. I want her to believe me more than anything. And she doesn't want me to prove it by showering her in gifts or anything. I need advice on how to win her back.