You're in the "honeymoon phase." Enjoy it! I'm still sort of in it with my husband, but also dealing with some of the ugliness that we didn't talk too much about during the separation (it can sometimes rear it's ugly head when you're back together).
As far as the kids, my therapist cautioned me about them figuring out mom and dad slept together. She warned me that it's important not to get their hopes up too high... just in case things didn't work out because that could be damaging (Even though I had a very strong feeling by then that we'd get back together.. we had started talking about it).
I didn't want to take chances so I did try to explain things to them. I told them when you've been married and loved someone for a long time you can't help but sometimes feel very close to them..." "Also, we spend a lot of time together because we're still friends we're both trying to figure things out. Even parents have to grow and learn..." "I can't say what's going to happen, but we still care about you kids very much... yada yada...."
There is no arriving, ever. It is all a continual becoming.
