Good game! I think you really nailed the revenge theme, and how powerful yet pathetic MC can be when defending his loved ones and confronting who he is.
When it comes to Sam's story, I found myself wishing for a black choice to end her path once she confesses she wanted a true romance but felt she could never get it, so she's willing to just be MC's lover... I really felt bad for her haha. I restarted the game and skipped all the way through again to avoid her, so it wasn't an unsolvable problem, but again, I think it would be a great quality of life improvement to give players a chance to reject her there (just like you have a second chance to reject the "married Karen" when she shows up in the changing stalls.)
On that same line, I stopped at the Madeleine Sauna scene because I wasn't in the mood for having a casual sex scene - I wanted to eat with the family! - when I'm invested in the more serious romances MC is having (Emma, Chloe). Yet I am forced to go through it because a thousand years ago I picked "she's cute" upon meeting her. Again, to restart and close her path upon first meeting her is an option, but when life is hectic and I'm short on time, it'd be nice to be able to reject her with a simple choice and continue, saving a lot of time. So again, I think a choice to reject Madeleine in the sauna would be a welcome quality of life addition for players!
Best of lucks with continued development, you are making a great game!