Got used by a D1 athlete. Should I tell the Dean or let it go ?

So I met D1 athlete online. I guess originally he thought I was cute and I thought he was cute. I showed him lots of support on his TikTok. Then one day he was struggling with school work. So I offered to help him. Then my help turned into him conviencing me to just do the work for him. He would not do any of his homework. I asked him if he wanted to do more of a study session type of thing and he told me he was busy with practice and football that he couldn’t do the work for his self. I some how ended up just doing it all. Then one day he had a game in my city and I thought he would want to meet me but that was the day he acted very stuck up and not interested in me at all. The woman who helped him catch up on school. I got so mad I threatned to tell on him for passing my work as his own. Still no response and he blocked me everywhere. All because I expressed to him that I was supportive person and helped him and now he wants to treat me like I’m just a fan. From another account I heard him bragging about not letting no other girl help him with school work and he said I’m talking to myself in his messages. I did tell him that this was a vulnerable time for me and my dad had recently passed away and I had a friendship breakup from someone who wasn’t really my friend so I was just happy to have a friend who I thought I could look up to or that would invite me to fun things or get me out my shell. Plus he was a really hott guy. He did pay me for helping him but that was not regular help that was me flat out doing the work.