As per title really.
I admit that I find it very hard to just shrug it off and carry on if I am aware that someone does not like me, although I'm getting better at doing this.
In the past I've been a bit of a people pleaser, desperate to be liked by everyone, and have allowed some rather unpleasant types to be my friend. This has then resulted in unpleasant types throwing a hissy fit as soon as I won't do as they want, or something doesn't go their way. So I'm aware that I have about 4 people locally that really do hate me a lot.