Dream of Ex in Grocery Store: Unfinished Business Meaning & Interpretation

"I dreamed I was shopping in a grocery store. I was looking at some fruit when I suddenly saw my ex. She was pushing a shopping cart and smiling at me. We walked through the store together and talked about our past. She picked up my favorite snack and put it in my cart. I felt happy but also confused. Then I went to the checkout, but my ex was gone. I looked around the store but could not find her. When I reached the cashier, I saw her standing behind the counter. She looked at me and said, "You forgot something." Then I woke up."