For the neutral ending, you want to get less than six points! There's a number of ways to get the neutral ending, since, as the name implies, being neutral with Enya and some choices can yield in negative points.
From looking at the game very quickly, here's what I suggest doing!
1) Help Enya (+1 Point)
2) Don't eat with Enya (No points rewarded)
3) Take Enya to the meeting (+1 Point)
4) Don't compliment Enya's drawings (No points rewarded)
5) Give Enya generic advice on handling toxic criticism (+1 Point)
6) Don't tell Enya about the nightmare (No points rewarded)
7) Thank Enya for standing up for Diana after their meeting with Godric (+1 point)
8) Don't approach Enya (No points rewarded)