Glasner led Palace to their first major trophy when they beat Manchester City in the FA Cup final last May, which also secured them a place in the Conference League for this season.
But Palace sold their talisman Eberechi Eze in the summer to Arsenal and, although the Eagles started the campaign well by going unbeaten in their first 11 games in all competitions, they are now winless in their past 10 fixtures.
Glasner added: “If you get your heart torn out twice this season, one day before a game, it was with [Eberechi] Eze in summer, it was with Guehi now, you know?
“What should I tell the players all the time? What should I tell them? And then I see the performance today for 50, 60 minutes, it was not easy with all the circumstances going here with 12 players from the squad.
“I look at the bench, I can’t react, just kids on the bench, and this has not happened yesterday, this is weeks ago. That’s why I’m really frustrated today.”
Asked if he was tempted to leave this month rather than wait until the end of the season, Glasner added: “No, never, I would never. I will go with this group of players until the end.
“I have so much respect for their character. I see they’re disappointed and I know how hard they are working, I see how hard they are fighting at the end. Never, no chance.
“I have said to the players we have to stick together, if we don’t get the support it’s us that have to do it. There is nobody else, we are the only ones, we are the ones who have to play.”
