Honestly, for me it was wanting to play my MC as slightly jealous of Arthur at first because he was afraid to lose his uncle. But then I planned for him to slowly warm up to Arthur after talking to his uncle about his insecurities, only to have the story force me into only one option to push Arthur down into the well. I stopped and completely reset, cause that wasn't where I wanted things to go. It kinda sucks that I can't play that way for my MC, but I didn't want things to get taken that far. <_< I've enjoy all of the rest, but that's something I keep thinking back on.
Hmm...was a while ago that I tried that route. So I don't remember to well. I know my MC was cold towards Arthur at first, but mainly hurt and angry with Tobias. After he talked it out with Tobias, he decided to give Arthur a chance and they were having fun. Becoming friends. Even chose the shy flirt option with the herbarium. But then the well came up and suddenly I was railroaded into pushing him into it. I just wanted a little drama but my MC was never a cruel child, so it felt a bit to forced and out of character to suddenly have only that option. This was quite a while back of course, so maybe things have been refined since then. I'll have to try it again.
Edit: Oh yay! It didn't go nearly as bad this time. Finally, I can put that behind me. It might just be cause the story was in a much earlier state. =P