Just always have the mantra "It's not going to last" and then you can just live for the moment and play things out!

As much as you put in is how much it will hurt in the end if she leaves butt.......
if it lasts then you are plesantly surprised!!!

I personally just like laying there with my guy. Just being in his presence makes me feel comfortable and just knowing he is there makes me happy! We have been together for a year and a half now and I miss him when he goes to work! haha