Don't worry, you're not alone...
This is the exact same reason I got problems with the author's other story The Virgin Witch. I have no problem with the main chara being a slut, go ahead!! Have sex!!! Life is made to enjoy!! But when you start adding the serious themes and pointing towards a romance route with a character you can't just forget about the serious things you introduced for the sake of horny. I love horny, I really do... But not when it comes out of nowhere and contradicts previously discussed emotional hangups... Just... If you set a tone, stick to it, you want to change it back? That's fine too. But you can't turn it into a rollercoaster forth and back without it losing meaning... That cheapens out the emotional part and takes the fun out of the sexy parties and neither side really gets what it deserves.
Am I the only one who hates that Sunwon is still involved with Vercion? I am not looking forward to the threesome scene Albis shouldn't have to share Sunwon with Vercion.