<human>: Can you condense the text into a few key points?

Hello there. A little background on myself: I go to college in a town a few hours away and have a serious boyfriend. We don't see each other over summer because of distance (3,000 miles lol) so I'm pretty much solo during this time of year. 

Anyways, let's call my friend "Eric". Me and Eric have been friends for a VERY long time, since we were in kindergarten. That's about 15 years now. There have been a couple years where we didn't have contact due to busy lives and different high schools, but all in all we have always remained in contact. Our relationship has never gotten *close* to being romantic. We've always been "dude" and "sup" buddies. 

The other day, I texted him asking if he wanted to partake in the bake, to which he agreed. After going to a babyshower, I drove over to his place and we were just sitting in the backyard. During our conversation, I apparently said something amusing and he began laughing. Then he did something weird. Eric just finished with an "Oh you!" kind of laugh and then touched my knee. It was a quick, but noticeable brush of his hand on my knee. He was almost on the other side of the patio table, so it was a laugh-lean forward-touch knee-lean back-laugh sequence. 

It gave me a weird feeling, but then again I wasn't sober so maybe I'm just overreacting? Later, I had ordered a pizza and while i was standing outside with the pizza guy, Eric comes out. Since I'm standing in his way, he puts his hand (lightly) on my waist and says "excuse me". Once again, I get a weird feeling. 

Eric has a serious girlfriend, and he's never done this before. I might be overreacting and if I am, please let me know!
<bot>: Platonic friend of many years touches my knee in an odd way, proceeds to put hand on my waist later on while asking me to move. I feel like it's flirtatious. Am I overreacting?