AITA for not sharing my soda with my best friend when it was too small for us to share?

So my friend and I were hanging out in my room working on a project. I left my room for a moment to go get a soda from the fridge, just a little grape soda in a bottle. I get back to my room and my friend instantly asks me if he can have some of my soda since I always shared my sodas with him. This time I say no since it's not a two liter bottle but rather a much smaller bottle. That wasn't good enough for him and he tries to grab my soda from me, but I was able to dodge his attempt and he fell onto my bed in the process. I got really upset with him and I told him to leave. He told me it was no big deal and I was being a jerk over not wanting to share my soda. He ended up calling and getting a ride from his mom, but not without saying I was a jerk for not letting him have some of my soda. Was I wrong in not wanting to share with him?