Game of Thrones

I've never read the books but me and my wife recently finished watching the TV series. Neither of us liked the way the final season ended. Not sure if we will watch any further seasons...kind of like how Scrubs season 9 doesn't exist in my head and I've never watched it but the difference is the reason I didn't watch Scrubs season 9 is because I felt like the show ended perfectly whereas with GOT I feel like any further seasons would ruin the previous seasons for rewatch.