The next day, I visited Sandra's house, hoping that Sue wouldn't find out.
Why did you go to Sandra's house the next day?
I wanted to get back my shoe that I lost last night.
Sneaking around behind someone's back is not nice. If you feel like you have to hide where you've been then you should reconsider your relationship.
I like keeping things interesting.
It is rude to sneak behind other peoples backs. If you have a good reason to be somewhere the other person should feel ok about it and not get upset.