I am curious what would come to us especially to her since she is baptize...
More would happen to her than you since she is baptized. Dating a non-witness isn't a disfellowshipping offense, although that could be a gray area with some elders, but she would at least be marked if she continues to see you. Being marked is half way to being disfellowshipped.
If she is marked a talk would be given explaining what has happened, then the elders would make sure the congregation knew who was being marked even if her name isn't mentioned in that same talk. A marked person can be talked to and associated with at meetings, but not so much away from meetings.
Her pioneering would be gone for sure.
As others have said, this is a very controlling religion even at times when it should mind its own business. If you decide to get baptized into the JW religion you should be prepared for a life that is full of this same controlling behavior.