Hmmm Grace is running you .... and it ought to be the other way around,,, Its a dominance thing,,,, she is saying you will do things my way or its no way,, and your buying into the game....
whenever Gracie starts this,, you will have to turn your face away and cross your arms until she comes back and stays on her own. when she does,, its lots of praise,,,, but DONT CHASE!!!! chasing is doing things her way and thats not a good idea. Gracie will soon learn that you arent willing to play her way. This will quickly come to a stop and she wont run when you lean down to her in the future. do this only about 3 to 4 times maximum.. after,, you must ignore her for at least 10 mins..... that will really tell her you are in charge.
Patience is key here!!! Hang in there,,, Doggie will give in before you do,,, and when that happens,, no more problems.