He showed me, with excitement, a box of things he'd been collecting from me without my knowledge. This included strands of my hair taped up neatly, bobby pins and hair pins I had in from prom, my finger prints and saliva sample that he took out of the trash from our forensics class experiments. He thought this was a romantic gesture or something, but it just made me really realize how creepy and obsessive he is.
He was also very controlling and got jealous/mad at me for hanging out with my sister, or spending time on my laptop or with my dog. And he also admitted to me that he stalked my FB interests to pretend he knew and liked what I liked, researching the games I played and music I listened to so he could bring it up in conversation. Total psycho.