Most people that play these games just want to get to the sex. Honestly if just the sex is all you want then it will ruin everyone of these games.
I feel your pain man. People say they want to see the main love interest get the D, but if you give it to them right away, they lose interest in the game. The MLI should always take time; but not forever.
These games build sexual tension in the person playing the game, and they need a release. I mean...who wants to watch a porn video for two years before you get to the good stuff?
So successful games have more than one love interest, side girls to release the tension. One that you can bang fairly quickly, another that takes more time, but she's a slut and you know you'll get her with a little bit of time invested. But as I said, the MLI should take more time, but not so long that the player gets frustrated and stops playing. You have to find that point where the DEV has built as much tension in the person behind the screen as possible, anything more and they just get pissed off.
I've pretty much stopped playing two games for bad pacing. One of them has a daughter that I'm not so sure we'll ever see take the D (here's hoping his new game has better pacing), and another step daughter game (or daughter with a patch) that took the D before chapter 10 right after the father found out she was in love with him. They're both great games, it just started to bore me.
But to get to my point, this game has no options to release the tension. The Dev would have served the game better if a small harem formed by female survivors had washed ashore with him. All he has is a bitchy daughter and the player knows that is the only option. The game is a great concept, but if I were the DEV, other survivors would have been washing ashore a long time ago.