Is AUTHOR wrong in the post ? POST : My soon to be ex-roommate is moving out by the end of the month. They have taken the bulk of their things to their new rental but they have left some odds and ends behind. I would like to put the things they left behind that I have found while reorganizing (things that were in cabinets or left behind in the bathroom) into a box and set it aside for them to get. Eass of access for them and it gets their items out of the way for me.

Here is where I need to know if IWBTA. We have not been getting along and things are tense between us right now. Mostly due to a lack of communication on their part but also due to me being unable to keep my frustration to myself. They cannot commit to plans they make and as much as my obvious frustration is adding to their stress, their flaky behavior is adding to mine. We are both rather done with each other. 

Would doing this look too much like a passive aggressive attempt to tell them to get their shit and leave based on the tension? Or would they be an asshole if they were angry at me for putting their things aside? 