Bad Habit : Lost My Feeling

Now, I wanna share what I have, and I'll ask you for a solution. I've had a really bad habit since I was in junior high school. No no no no, exactly since I was in elementary school. What is it? I'm easy to lose my feeling, in Indonesia most of people say 'ilang feeling' or 'ilfeel' to someone loving me but he doesn't look like my criteria, no the case isn't like that, I will lose my feeling to someone loving me who has an attitude that stimulate my brain cell to lose my feeling, it seems like same as my statement before-_- OMG! It's really not fair, isn't it? because I do know that loving someone is everyone's right, and there is no one can forbid it, right? and I know I will be very sad if I am on his position. Yeah, Knowing person I love, lost his feeling to me, painful. I don't wanna lose my feeling for someone anymore. So what must I do now? I have to tell him, that he has to stop loving me, because if he still love me, I will lose my feeling for him. NO! it's BIG NO, I've just thought like an animal just now. Must I keep silent and let my self lose my feeling for him? easy case and rather complicated. Now, I really need your solution for this case, I do wanna change my bad habit. Thank you :)