Annia, the best hope you have of learning to write perfect English is by arguing on the internet (reddit.com is best). I did and now my English is better than that of anyone here!
Don't shy away from discussions like these.
You've mastered rule number 1 already: when you've made a mistake, admit it and don't become defensive.
Dear Annia, you shouldn't have felt you had to apologize, there are people on the forums who like all this kind of thing, don't feel bad. If you want to see what I'm talking about, take a look at the thread GoKM Saying and Doing - MOST of it, anyway, is just in fun.
The fact is, it's IMPOSSIBLE to know if she was being deceptive. We don't know what she was thinking when she posted it.
For that reason, the debate should be ended, NOT because it's clear to Alien, who is intellectually superior and is always right about everything, that she was clearly not being deceptive and everyone should just accept his point of view and shut up.