Are your comparing points that are on the same or a different arc? If it's further arc, manga still has a chance. I don't want to be disappointed, and deleting the banging part is illegal
As for Angelica, since shortly after leaving the dungeon with her. When they visited his house in the woods, she advanced the situation.
Now the walls of the inn weren't very thick, you see? In an obviously unrelated matter, all the other girls have
mysteriously max leveled their detection skills, and vibration magic ability. It can't be helped, whatever the reason may be. Also Angelica has been keeping them... informed, during their girls-only meetings.
Shortly after meeting Nefe, she joined in. She forced him to agree to "tame" her... in bed, which she also forced her way into. Every since, he's with them both, every night.
Now the manga could handle just subtly hinting at these things, without being explicit, instead of this. But that's hardly the worst thing that's been lost. You'll understand if you
read it, which I highly recommend. It's worlds above the manga.