hey!! you can get their good ending if you end the project with them. you have to go to the library at 6 pm for that, if not, you can also go at 8 pm (you can also get them to tutoring you after doing the project), though you have to talk with them more than 4 times or something like that. you can find them in the garden at morning, the library when you have time before class (but only if you don't chose reading, cause you will see barnaby most of the time if you do so) and when you get check up when is time for lunch (12 am). hope it helps you! :]