(((( Mouse ))))

"it strike me that if we do have "parts" then doesnt it make sense that some of those parts could be "evil"??"

Yes, absolutely. But I would say angry instead of evil. Fantasies of retaliation aren't evil, in fact they can be very healing.

"why does this part hate my dog when growing up its the only time I saw my mother be compassionate about anything,"

I agree with ginnysky. Sounds like you resent your dog (your mother's dog) BECAUSE mum showed it so much love and compassion and you wished she'd done the same with you. It would be perfectly "normal" to feel that way. Read about projective identification if you get a chance.

"I dont want to hate my dog but I feel so triggered by her needing me.."

I read that two ways.

"Triggered by mum needing me."

"Triggered by me needing mum."

Good work, Mouse. I know you probably don't see/feel it, but you are making much progress on your journey!

Just some random thoughts.