I told you that they take things, i.e., sometimes they take things that do not make any sense to us, but to them they are very important. Also, they will take items that like food, toothpaste, etc., just so that they don't have to purchase it. But they forget one thing, when they run out, they have to purchase it themselves or they come back and get it from you again.
My xh took things that truly didn't make any sense to me. For example 20 pencils and 5 notepads?
Walk thru your house and see what else he's taken. If it's stuff that you will need as well, then it's time to tell him that in the future, before you load up your vehicle w/stuff from the home, let's talk about it. Right now, he feels entitled and the stuff in your home is FREE for him to pick and choose from. He doesn't want to spend any more money than he has to.
Set your boundaries. You may have to consider changing the locks or resetting your alarm, if you have one. The "helping himself" will not stop unless you put him on notice.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.