I have a list of over 300 questions that you can ask someone when you are trying to get to know them better, would you like that list? Or are you looking for something else?
Ok, I will pull those things for you together and post them tomorrow if that is ok.
No one can tell you a 'way of being', because you are the person you are. If you want to be more spontanious, then be more spontanious. Break out of your schedule, do things in a different way, suprise him sometimes, be fun, have fun, but most of all, be yourself. There's a reason why he wants to be with you, and you can't do anything to make him stay forevor if he doesn't want to stay. You can only be yourself and know that someone out there will love you for yourself if he won't.
Here's the list of questions, it's good to maybe ask one or two a day, some of them can turn into some very detailed conversation.