my annoying ex............................please help

i broke up with my boyfriend almost 2 月 ago. At the start I thought he was pretty cute and sweet. But when we got together, he would constantly text me. I got really annoyed. Sometimes I tried to ignore his message, but he then would find another way to text me and made sure that I received it. At school he would follow me everywhere, from one spot to the other. When I couldn't take it anymore, i told him i only wanted to be friends, he just nods and walked off. It does not end there. Me and the girls would play handball down the courtyard. Some his mates would come along with us. He would follow them and play. This was his excuse to be near me. He would grab the ball and not passing back, before あなた know it the ベル rang. When his mates weren't playing, he would stand there talking to someone. When I ask my フレンズ または his フレンズ a question, his mouth would always pop in. This was the point where my head was going to explode. My フレンズ all decide to play handball on the other side of the court, making sure we were faraway from him. But the 次 thing あなた know, he's right there talking to his friend. He would try to catch my attention によって walking through the game, laughing and talking out loud. What should I do? but not being to mean? BTW to make it worse, I might 移動する up to his English class!!!!!!!!!!!!!!!!!! soooooooooo sorry, if this is to long! please help1