For those who don't understand what happened.😁 As we have seen in panels that Nobody other than the poison king is capable of tempering that poison.(i will use this name Poison King so it's easy to represent). Poor Tang soldiers didn't do a thing, she tried to steal poison and died. Even in the last moment she was trying to kill but his mind couldn't accept reality, that's how madly or foolishly in love he was. When the tang soldiers arrived who didn't do a thing, She said something in his ears probably a lie cuz she was already poisoned before tang soldiers arrived, he was looking for an excuse to not blame her so his mind made an excuse that those soldiers who didn't do a thing were trying to steal it and she was protecting calestial poison after hearing her lie. So the anger of her actions was all directed towards tang clan who didn't have a thing to do with her. Though even if they have arrived, they would have just captured and tortured her which is bad but still they wouldn't kill her as they knew he liked her.😁👍