I think many people have feelings for others they don't want to have feelings for. The problem is: feelings do whatever they want to, whether it's good for us or not. For what it's worth, I was once told if something is meant to happen, nothing will stop it from happening. And...if something is not supposed to happen, nothing you do will make it happen. In other words, these types of situations are beyond our control. So, what you need to do is to distract yourself from your own feelings. I'm not sure how you would do that though. I'm sorry this is happening and I understand your pain.