Have you ever met someone who acts so kind but inside they are seething with resentment, jealousy and/or bitterness. I knew a woman like that once. She always acted so kind and volunteered to do things, proclaiming what a good Christian she was. Then resentment or jealousy would start to nibble away and she would find reasons to dislike the person or people SHE had volunteered to help. She would start to say little things, play the gaslighting game ( use of deceptive information to promote a distorted view of others or tried to convince others they said something they didn't or try to convince them they had forgotten things).
I saw the real woman one day. She took off the mask of kindness and it sure was pitiable and ugly. The sad part is that no matter how much she wears the mask she can't escape her own demons. I suppose the way to look at it is at least she tries, which is more than one can say about others.
Me I have more respect for those who are true to themselves, even if they are not likable. At least I can be spared the painful process of finding out that the person I thought I liked proved to be someone I would never have chosen to be friends with in the first place.