Like I said before, only two people can make a relationship work. If her heart isn't in it then you'd be in a relationship with yourself. If she says no, she probably doesn't love you anymore. The best way for couples to solve their problems is communication. Before you give up, have a good talk with her. She might just be upset about something. Sort whatever reconcilable differences. while doing that, we need to know the difference between fighting for love and begging for love. If she's still adamant and she wants to let go. Don't force it, respect her feelings and move on. You are probably not the right one for her and holding on for longer might hurt you because she'll never offer you the love that you deserve. Sometimes the things we want aren't things we really need.