Looking for a reason to communicate
Forgotten books and clothes, the gifts you prepared but didn’t have a chance to give, and other little things are often used by people to remind their ex-partners of themselves. It seems that it’s not such a big deal because there is a reason why you called your ex, but it’s not true.
Why it’s harmful: Constant attention that has nothing to do with a relationship makes a person seem even more important. You might not notice this in the beginning, but in 6 months you will realize that you don’t even want to go on dates because you still can’t get over your ex.