She noticed that their family driver used the toilet several times a day.
She will take that chance to leave the room! She will just post a note on the door instructing him to watch over her father while she was on an errand, she will be back soon.
She was sure that the family driver will never leave her father's side, besides, if something happens he can always call the nurse for assistance, she will include that on her note as well.
The driver might inform her sister Stephanie about her sudden disappearance from the hospital. She doesn't care anymore how many slaps and scolding she will receive from her sisters as long she and Peter get married on that day - she is willing to bear anything.
With those thoughts running in her mind she's finally at peace with herself.
Now that she already had a golden plan, all she needs to do is to get ready any time just in case the driver will use the bathroom.
She smiled jubilantly.
Great!
Fantastic! She already had a plan!