I’m close to releasing my new story within the next few weeks, and before they’ve even read it, people accused me of copying another story. I’ve only ever read the first 2 episodes (I think?) of the story they meant, but didn’t continue it. It was horrible as a bunch of people who I didn’t know, and haven’t read my stories started arguing about my story- which they hadn’t read!
I won’t go too much into it but I wouldn’t worry. It’s great that you’re so conscious about making sure people know you didn’t copy, there are a few authors in the community who have copied and refused to own up to it. I would just continue your story as normal- only you know what you’re gonna write next! Don’t feel pressured to prove to people that you haven’t copied, even though the story you’ve mentioned has a lot of reads, people making assumptions don’t have access to your thought process! Keep writing! 