Well yes, I am not worried about the heartscale (Quick update about on that, it's only spawning when I restart the computer, now I am even more confused than before :D )
But the trainer still does not want to rematch, even after she did once, but then she did not use any kind of blisseys. I am at the point, when I realised my pokémons are so weak, that I have trouble getting trough the Team Magma. Also, I am using the latest version.
Anyway, thanks for the answers!