Yeah I frankly agree. A lot of the times Spencer's shitty behavior is completely overlooked and excused by the MC because 'they are family' and/or because of the things that happened to him too (without spoiling). It's just honestly frustrating and it is said that the MC can't stay mad at anyone but it feels like a slight cop out? Especially with how bad his behavior gets in some routes.
I've loved everything else about the routes I've played so far too! This is just like the one thing I have been unhappy with.