EXCITEMENT?

Why is that we get so excitited about something but when the time or thing comes we are not excited anymore. I remember when I was younger I would like a guy and try to get him to notice me,and once he did the excitement was gone and I was ready to move. Is it more fun to dream about it and wonder, rather than it actually happening? I think I am like that about heaven. I want to go to heaven but lately I havent wanted to do the things it takes to get there. I dream about how it will be but I am scared because I am afraid of what will happen when the time comes. I use to get excited to go to church to see everyone and get "spiritual filled" . I miss those days. I am so sad the BH had to turn out like it did. We were all so close,so it seemed. I miss eating out with everyone on Sunday nights and sharing a meal together on Wednesday evening. I hope that one day I can find that type of family again. But that is me being excited about whats to come but when it is actually time will I run away again?