I stole my crushes stuff

I have a huge crush on this guy in my art class in school, he sits right next to me.but then I found out he was dating someone I felt really jealous so on some occasions when no one is looking I stole some of his art pieces. We keep what we make in cubbies and it’s in the back of the classroom so nobody can really see what you do and I take advantage of that. weirdly I don’t feel bad for taking his things I still have them but they are in a small box