No.. You are wrong. Scott is Kourtney's boyfriend and father of her 2 children.
Scott and Kim were never married. So, you are the idiot :)
Get your facts right. She was married to Kris Humphries, and Scott is Kourtney's boyfriend. So to answer your question: No, it isn't a conflict of interests.
Are you sure this is a good idea for the both of them to be seen at Scott's restraunt?
She was married to Scott, so isn't a conflict of interests?
What if they get into a argument? How's that going to look for Kim? My guess is she'll look like an idiot, and will