End of the Line, IRL based

Me and Zoe were friends for ages, but she started to get toxic, I moved away down south and she ended up getting cheated on, she came down to visit me, all my new friends kept asking me 'Who's she?' 'Isn't she a bit toxic?', I ended up telling them everything. I was an actor in our school play, she was a stage crew. I sucked at P.E but she was amazing. She was an amazing artist, but she referenced to me as 'her stalker' because we were always together.