18, traveling cross country on an airplane (7 hour flight) alone. Seated at the window seat with a 35-ish year old guy who could have easily sat in the aisle seat and left a seat between us, but opted instead to sit very close to me in the center seat with the armrest up. He used his sweater as a blanket, acted asleep and rubbed himself most of the flight. It got worse as he “accidentally” started stroking my leg in his sleep. I got up to use the bathroom and vomited (only time I’ve ever been sick on a plane and I fly often) I debated telling a flight attendant but I really didn’t know what the outcome would be. I was frozen with shock most of the flight and at the end the dude had the balls to ask me for my number.