Based on what you're saying, I take it there's no way to patch things up with them yet if you're honest with them?i think harem ending IS the default ending if player choose to do every interaction with girls
but also, probably sacrifice a lot of lewd scenes+need harem perk+a lot of difficult/annoying choices to choose to achieve it
because during this E4 patch, in order to romance both paris and the twins you have to an option to lie about it to the twins = continue both the twins and paris path
and another check for the twin path with accepting their confession = lose double bj scene
and naomi is a cuckqueen, so 100% default girl if you choose to romance her and she probably okay with poly-relationship
also darth something in frat party pretty much told you beforehand about harem end that you NEED harem perk for all the girls to be okay with it
very ambitious, but doable
needless to say that most girls dont have solo ending, cheer girls is a package of 3 anyway
I wish the dev wasn't so cagey about who is on what route. I'd rather just make multiple playthroughs to experience all the girls, instead of fumbling in the dark and potentially hurting them. I'm too much of a pussy to play through making cute girls cry.
Alongside the Cheerleaders, Katie and Violet also seem pretty chill with you dating both, so I wouldn't be surprised if those 5, plus Taylor form the core of the big harem route, with others being optional inclusions.