You didn't know where you W was living with your small children?! This is beyond mind blowing. I am wondering what kind of person keeps this a secret from the other parent? This is soo wrong. I am so happy for you that you at least have the address, have seen the place etc. I hope this puts your mind at ease. Also, your W never told you she moved?
Please, please, look out for yourself in the mediation! I know you love your W and want to reconcile but it doesn't sound like she is playing fair.
Me: 30 EX-H: 37 DD: 5 Separated 6/07. MC for months, EX-H quit MC. Divorce Final 8/14/08. Trying to move on with new life.