You removed the wording that the article Hellen was about a mythological figure. And I believe your argument was that she didn't fall under your definition of "mythology", so I pointed to an encyclopedia that also considered her a part of Greek mythology. Sorry if I am missing something. Anyway, my point is that to avoid conflicts on each article's talk page, and to avoid people coming to your user talk questioning you edits you could a) stop editing in such a controversial manner or b) go to a community wide level to try and get support for your changed before you make them (such as starting a centralized discussion, or just going to the village pump). Just some ideas, sorry if I got a little TOO offended. Good luck.