When I first started to play the game my intention was to become a "evil" oathbreaker paladin, who'd just take whatever she wanted and wouldn't care less what anyone else thought of it.
Then I met Karlach a short while after exploring act1, and I fell in love with her right away and suddenly I decided to dedicate this whole playthrough to do anything to help her. Karlach's attitude was so fun and joyful and it just made my day better anytime I heard her dialogue options or her quirky one-liners in combat, she just felt so unique in this world.

However once I got to act2
where I turned in the second infernal iron to Dammon and he then saying that she's destined to die if she does not go back to the hells, it broke me so I did as many others have and I took too the internet in search of answears.

And after progressing further now in the lower city in act3 it's become incredibly frustrating and depressing to try to continue onward on this journey knowing what is to come and all the things you SHOULD have been able to do to stop it.
There are so many solutions you just walk by in act3 if you just stop for 5 minutes you could save her. And I think that's almost what hurts the most, the solutions are there and I want to use them but I'm simply not allowed by the game, she's just not allowed to live the happy life she so desperately want.

In this game of choices I'm simply not allowed to make the one choice that matters to me.