Do I have a reason to be mad at my roommate?

So my roommate borrowed my watch like a week after I moved in without asking, this was on NYE. Didn't tell me till weeks later when he was showing us pictures from the night and thought I would see my watch. I didn't care because I don't ever wear the watch but still, went into my room and borrowed it without asking.

Fast forward to a few weeks ago, he goes on a fucking clean freak out and decides to clean the entire house. Even goes as far as to wipe down the couch, clean ALL of the fixtures, and vacuum each stair. He also decided it was his responsibility to go into my room and vacuum any open carpet without asking to go in my room.

So later that week I told him not to go in my room, I can clean up after myself, and if you're going to borrow anything ask first. I am okay with sharing, just ask.... THAT NIGHT, he is getting ready for his night out and when he leaves I go to the bathroom and see that my cologne is out of place, like across the counter from where I usually put it.. And the bathroom smelt like my cologne... fucker used my shit HOURS after I asked him not to use my stuff without asking. (Mind you he has his own cologne.)

After that I put my cologne in my room, and decided to see if he was using my bathroom stuff, we share a shower. So I got OCD and positioned my soap, shampoo, etc. in a way that would not be natural for someone to place it back like. This morning I hear the shower running and he was showering. I get out of bed go into the bathroom and see that my body wash is out of place. So I go towards the shower and see that my luffa thing is also out of place. I smell it, it smells like my body wash, I touch it, and its fucking wet. The fucking guy thought it would be okay to use not only my body was but also my cleaning utensil for himself.

Needless to say I am pissed and feel like he should not only stop using my shit, but buy me a new luffa thingy. Do I have a reason to be mad and get pissed at this kid...

Spark-notes: Roommate borrows my stuff without asking, started with a watch. When asked not to he proceeds to use my cologne that night. Then uses my shower stuff and never asks about any of it.