Why is my best guy friend getting jealous?

Ha ha you do not even realize what your doing to this guy. Your killing him everyday and its all for the same reasons why you love him so much that you don't love him the way he wants. This guy is in love with you would do anything for you and like most people when you have someone that gives you everything you could dream who knows you better then anyone when you have a man like this you treat him like he is your female best friend He is a man flesh and blood and he is so in love with you that every time you bring up another guy it is like a stab to the heart. Eventually he is going to get fed up with you and leave because how much can one person take getting destroyed over and over again and whats worse that the person does not even realize their doing it? This is why men don't tell women how they feel, why men keep their distance because we do not like to be seen as an emotion tampon. Whats funny is all these things he listens to is because he cares about you because its you not cuz he is scared but its his love that will keep you from him.. Ironic isn't it?