ps, I can totally relate and understand how expressing yourself feels great and then 30 minutes later, not so much. I agree with Riot, please be kind to yourself. You have every right to your feelings!

(And I think he treated you horribly and you have every right to feel and even express your feelings ... and if it came off as whatever, it's OK! You are human. So next time, maybe you will do it a little differently)

And you aren't so bitter, because you have a new S/O!