I don’t have a lot of personal experience In hating or not hating someone. Hate seems pretty extreme to me, none the less, or perhaps because of that, Yes I believe you can choose not to hate someone. More to my personal experiences that I have had, I believe you can choose to love someone. And more directly if ever in a relationship for a long enough time there will be occasions where you will have to *choose* to love them in order for the relationship to last. The love chemicals eventually wear off, or there is a testing, A rough patch. I’m not saying you should always choose it with everyone, with some people choosing to love them will be bad for you as they are toxic, manipulative, and hurtful. But it is a core belief that love is a choice. And with all other decisions as well, Otherwise you will be tossed to the winds in terms of the direction of your life by your emotions.