I actually have what I would say is verging on a phobia of people hurting me/being mean to me/saying anything harsh because my self esteem is so shaky and it tends to feel like they have stabbed me in the heart.
I literally shake if I have to say sorry to someone when I have acted out, for fear they will tell me to f off, or will say something really painful. Cowardly maybe, but I really do feel emotional pain absurdly acutely.
Alas, because I wish so much for a close friend, I tend to put up with a lot more than others would, and always end up being the one grovelling, even if they have done something wrong too, which in time, builds up an immense resentment.
Sometimes, I get vengeful, but not in any real sense. I simply will deliberately keep away from them or not be responsive when they try and talk to me.