When I was in high school, a boy on the bus I caught home told another, older, student that I "wanted him". For the next several weeks, the older student expected me to sit next to him on the bus and spend time with him during my breaks. He was new to the school and I didn't want to seem rude, so I obliged him for a while. His behaviour became somewhat controlling, so I started avoiding him by catching another bus. When he would see me next, he would ask where I had been. On one particular occasion I didn't catch our bus, he came looking for me. Thankfully, I was with a friend, so he walked passed me and just said hello. It was then I realised I had to be firm.
He wasn't at our school long before he was asked to leave...