She seems incredibly cold to me, insulting people left right and centre, with no feelings of guilt, conscience or anything like it.

There is a 'word' for people who lack empathy and I am wondering if she has shown any to anyone in her time in the house?

The only time i saw any kind of empathy or niceness to anyone was when Kav had that secret task where he had to cry and he said he didn't have a home, Katie H was all over him to comfort him.
Of course she was pissing herself over it when Kav lft the room so....No, no she hasn't.

Yes all the time she has been great in the house she can be proud

I always felt that her reason for taking Kav's side was because the man she was isolating is gay and she calculated that if she seemed very kind and considerate to Kav she wouldn't come across as homophobic. Her relationship with Kav never seemed genuine. Everything she has done in there appears calculated and tactical including the tears, IMO.

Well one has to say a lot of her hm hav liked her and hav given glowing reports about her
Only the fence sitters have been negative About her thy are the ones that know her best thy live with her

The people she tactically decided to keep close like her ? yes that makes sense
The fence sitters don't ? again makes sense they sit back as see it all.