It has been a hit or miss lately, even on a long haul flights. It is really up to the ISMs. Sometime I would never see her at all in Y, excepting going to her mid flight break.
So as cxfan1960 said, don't feel bad, it happens to DMs too. I am a bit skeptical about how the campaign might change the behavior of the crew...... Don't get me wrong, they are generally good.