Unfortunately, I failed Greda's quest and left the angel alive, so Florence most likely died. Fighting the Prince of Hell on the bridge will be a pain in my ass againYou don't need to restart of the dlc. She doesn't drop anything and besides what I mentioned, there is no other consequence. She has a sex scene of course but you can unlock all scenes after achieving G end. If you still want to restart the dlc though, you just need to go to the next cycle, meet Mable again and go through the door.