I´m afraid a bit of the oposite. I don´t see the pressure building up, but releasing it.
The tension in this story has three sources. Macy´s guilt, Mc guilt and the social barriers and the wall of social conventions that come agains intimacy between closed relatives (being wards, daughters, nephews or whathever was the player´s choice)
The two guilt springs had been broken in this updates. And the strongest wall keeps no chances against the tenacity and cunning of our clever and lovely little goblin. A true sapper indeed.
As I see the story, chapter 5 be the opening of the gates and building of a new relationship. And chapter 6 the closing of the story. May be three chapters more, instead of two. But the walls had been broken in this chapter. We are, from this chapter on, going downhill, aproaching to the end.
And that´s something that scares me. Closing a story is may be the most dificult part of it. The developer can easily fall in love with his characters. The fan base can put lot on presure asking for more. It´s dificult and requires lot of courage to end something that it´s succesfull. You can see it in a lot of series. "This serie was amazing till season 6, but seasons 7-8-9 goes worse and lack tension and pourpose ".
Introduction, climax and conclusion its the clasical structure of a story. 4 chapters we have and I believe that we have gone throuh Intro and Climax. Now, in the nexts ones, we must go for conclusion of the story.