You mean you were stuck in the battle with the cards? If you try to win it from the start, yes, it could go on for a long time, maybe forever. You are supposed to want to loose the fights as fast as possible at the start (I think the game tells you that as well). You want to let most or all -influence for you cards pass and just stop the + work for her or - work for yourself.
It's the long game here, you loose the first fights, but try to keep her glory as low as possible. When you get on the map, you start improving fast. You get some events and the game evolves, some cards get stronger, some cards get weaker. This was one of my favorite games (and probably still is) gameplaywise. If you enjoy card battle games. You can plan what cards to improve for yourself, what cards you weaken for her (by doing the lewd events in that category first).
I admit that it's not the best ui, but it more than playable, I just think you got stuck trying to win the first fight in an infinite loop of sorts.
It is a little grindy in the sense it's hard to get to 1000 glory but it's easy to see all of her events, you can probably do one after each day as the cost for them is only 10 blackmail. If you don't enjoy the card battle aspect of the game, just activate the cheat and do the events and that's it.
That would be funny. Maybe the last game contains everything else but this game is less than half the size of Break the princess so it can't contain all of that.
