That's fine. In the first part, there were several scenes with her that you couldn't avoid, which was annoying.
Another question: If you tell her you just want to be friends, does she still act like she's part of the harem? Because in the first part, that's basically what she did on several occasions, and it's annoying because I specifically asked to be friends so I wouldn't have her in the harem.
Well, she was the one who was assembling it in the first place, she is in love with mc, so she does act like she is in the harem. Refusing to sleep with her won't change her attitude towards mc and won't bring too much dinstance between them, just like with any other girl. No outsiders here, just less interactions if you chose "friendship" route.
Some interactions were kind of mandatory in the first part, the second one will be a bit different.
