My FP turned on me last night and told me to "have a nice existence".

As the day goes on today, I now find myself struggling to stem back the growing urge to hate this person and everything they stand for.

I can't get them out of my head now, but instead of thinking of the good times and feeling shame, I'm instead thinking of their flaws and feeling hate.

Can anybody relate to this? Any tips on dealing with the situation?

I've tried to make amends with the person and they've made it clear they intend on ghosting me.

I don't want to hate them. But I'm having trouble not.

Any advice would be great.