The fecha on her tombstone & the fecha on her admission to the asylum where the same does this mean she was turned on the first día she was at the asylum? How could the vampire that bit her have created such a relationship in just a day?

He didn't, see Alice was living at the asylum for several month's before she got turned. When her family put her in the asylum she was dead to them and they were never going to see her after that day, so in their mind's she was dead.

she wasn't dead that day. she lived in the asylum a couple of mes before she was turned into a vampire por one of the staff there. her parents put her there and never saw her again. she was dead to them (and vampiros are dead o no heartbeat and they dont breathe)

They didn't, Alice lived in that horrible place for 2 months before she was changed. Her family put her there, and whoever this person is must have witnessed her change, slowly deterate, and couldn't stand it anymore, so, he estola Alice from the asylum where he worked. She never noticed the horrible pain. She had been stuck in that dark hole of a cell for so long.