idk if I've outright said/not healed someone. Some players just don't know and I like to give the benefit of the doubt on it. I had a tank once that actually didn't know what an aoe was, thus eating everyone of them and I did explain it very nicely after finding this out. A lot of players I've run into haven't done an mmo before and a lot of things are new to them. Did you ask them why? That would give you the best chance of knowing what you did wrong so you can avoid it in the future.