Megan's Date - Guilty of "friending"

I had this friend, we shared a love of sushi, and that's about it. I wasn't attracted to this guy AT ALL but when we started comparing our favorite sushi places I was happy to find to discover that he knew of some good restaurants that I had never been to and vice versa. That is how we became "sushi buddies" emphases on the buddies... Or so I thought. I made sure i paid my half of the bill. It was only when he practically grabbed the check out of my hands that he paid. This was a rare occurrence and I did not like letting him do it. I wanted to make sure he knew we were only friends. We never did anything afterwards either. Most times I met him at the restaurant, instead of allowing him to pick me up.
The last time we went to sushi, I was feeling gracious, and let him pick me up. STILL NOT A DATE. We went to my favorite sushi place and I, once again, paid for my own half. As he was taking me home, he started talking about watching a movie or "hanging out and just talking." -UHHHHH, WHAT?!?- I start thinking of reasons to not let him in. I think I said something along the lines of my house is too dirty (I lived alone at the time) and I have to get up early tomorrow... Next thing I know, he turns down the music and starts breathing hard... Yes, I said breathing hard. I thought he was having a heart attack or something! This was the conversation:
Me: "Holy crap! Are you okay??"
Ryan: "NO! (yelling) You friended me again!"
Me: "I DID WHAT?!?"
Ryan: "Friended... You friended me again."
I had no idea what he was talking about, but apparently this was not the first time I had done it to him. I finally realized that he meant I had turned him down. It was me who was breathing hard after that; I was pissed. I nicely but firmly explained to him that I had NEVER given him any signs to lead him on.
The rest of the drive home was silent. When we got to my house, I jumped out of his truck without even a good bye. He text me later that night saying he was sorry and that I was right and blah blah blah... I deleted his number and made sure we never spoke again. So much for my "Sushi Buddy..."