I've considered some hypothesis myself and I've found it more likely that she did seal part of herself in her daughter and that led to her outer personality to resemble her so much. That is not to say they're the same person, maybe some of her personality got through since they both seem so kind but I'm sure they're still different people.

They are indeed changing but i don't think it has anything to do with merging personalities, it's just that Tsukume's presence in both their lives influenced them in such a way. They were always alone and now they're surrounded by friends, a change in character is a given.

Who cares? Humans are lame. The way things are going I'd be surprised if he didn't become a full fledged vampire before all this was over

Yes i love her too