Until Death Do Us Part

[Lupin III]

"Rachel became infected and killed Eric, or Eric killed her."

I got this achievement and shouldn't have, not by that definition anyway. In my playthrough, Eric was pinned down, Rachel went back to help him, failed to grab the UV lamp, and then she got bitten by a vampire and infected. Next thing that happened, vampire Clarice jumped on Eric and bit his throat, killing him. Rachel made it down to the deep caves, ran off and became a vampire, and apparently died when she climbed up the rope after Jason, who cut the rope below him, causing her to fall on a bunch of stalagmites.

I also got the Full Clearance achievement here, which was "Clarice kills Eric".

[Romashka]

Quite an interesting version of the passage, looking at the fact that for some reason from the very beginning of the game, I decided to play Eric as if he loves her, but understands that they cannot be further.

In my version, Rachel confessed to Eric in one of the scenes that she cheated on him, and he replied that he knew about it. In the Rachel version, I chose not to let go and held her until the end, after which Eric crashed.

In subsequent dialogues, my characters said that Eric was wonderful, and Rachel was very sorry that this happened. Nick said while talking to her that he respects him and he's sorry, he's a good person.