AIBU to hate and depise ex

[Freeandsinglewater]

To the lonely maggot, (ex)
I hate you for using our son to get you GF.
I hate you for only having our son for 4 hours a week, two of them at a time. I hate the fact that your Gf bought over a puppy and scared my son. Did it take ages for you to get out the urine out of the carpet, I bet you didn't threaten to kick the crap out of the puppy. But it was ok to do it to my cat.

I hate you for abuseing me, and hope your Gf runs a fucking mile away!
That she sees all the red flags, and is saved from your misery.

[contortionist]

To answer the question in the title: YANBU, but you will be happier when you no longer give your ex any headspace. That may take a long time.

[mrsfuzzy]

hope you feel better for venting op, you are well rid of this sick bastard, move on and enjoy life with your son, hope your cat is o.k too.

[ProfessorPreciseaBug]

Probably not unreasonable..
But probably also not wise..

Life is very short... don't waste it distilling hatred and bile. Holding on to a past hurt will not make life better.. but it can make life bitter.