At Whisperwid Farm before getting access to Coal, I tried getting the Ice Alurane relation Up by petting them but nothing happened.
Later when I got access to Coal, I discovered that their Rel. Went over 100 and only after getting their scenes it would fix itself to 100. It may happen with other monster girls as well.
Like one time, the salamander girl with a blade. The message would read "100 rel. The monster girl looks at you confused" At that time I was confused as well馃槅
I don't really care about it, I just wanted to let you know