I don't think she meant it, Sometimes people say things and realize what they said, Please don't act mean to her. She feels very unloved when people say that.

But she wanted nobody to be her friend and in the future I was her friend

You could have ASKED: "Can I please Remake this drawing/anime ?"

You know what, SleepyBunnie ? I'm not putting you in that collab I'm working on. You're going to be blocked if you keep acting like this. Imagine someday someone does that to YOU ? "I just wanted to get ideas from her."