Settelling down your mind after unsuccessful love

So, does she don't like you, even though she beak-up with her boyfriend?, looks like time to move on, and give something to her, give her a gift in some special occasion, doesn't matter what they thoughts about you, they surely accept gifts, then, she knows that you really care for her, even though she's not, Then at least you can comfort your mind by thinking, you have done something good, and expect nothing back, and that way, the debt for her will be over, you will be able to calm your mind, and move on with your life without being so desperate to think about your crush..