I hate the "i can't drink anyone else's blood but yours" it's just an identical trope of "i can't get hard but to you", the author doesn't need to write that to make sure they stay together forever.
It never hits the way, "I can't survive without you in my life" as it probably was intended.
I hate the "i can't drink anyone else's blood but yours" it's just an identical trope of "i can't get hard but to you", the author doesn't need to write that to make sure they stay together forever.