Doesn't make me feel much better because I don't have a reason to be cool with seeing you die and I don't got healing magic to help you.

[And this was exactly why he drank first. He didn't want to be in the situation of having a chalice of poison he must drink or condemn them both to a slow and awful death. Better to drink while it was unknown and merely dangerous rather than risk her taking that away from him. Doesn't mean he likes this solution. He was okay with the risk of dying, but it seriously sucks to live through this through luck rather than his own skill. Really the only good thing he can see here is that the poison is likely highly lethal enough that her death should be quick and painless.]