Does the guilt ease after asking for a divorce?

[Brentinger]

Looking for a bit of moral support here. Just informed my partner of 10 years that I wanted a divorce, after years of major issues that couldn't be resolved and years of resentment/burn out on my end. She was in complete denial and begged to have one last try. I feel absolutely awful and hugely guilty. Does it get better? The guilt?

The way to happiness is through a door marked guilt.
Did you ask her to try to change behaviour and resolve things before, did she try then, or is it only now you're done with the relationship that she's offering to change things. If you've made your mind up, go through with it. You can't expect her to not be upset. That's the price you have to pay for leaving.

That's a great quote! I naively thought it would be reciprocal from the way she has been with me. Tried everything 4-years ago; marriage counseling, endless chats, ask to change and nothing but thinking it was my fault/ghosting my feelings. Hung on absolutely miserable for a year and decided enough was enough.

It’s never going to be easy. Why was she in denial does she not think things are that bad?

Yes it will get easier. This is the horrible bit and you've just got to get through it. It sounds like you will both be happier in the long run.

It must be hard if there is still love between you - she doesn't want to part and you feel guilty about it - so you each must still care about the other on some level. I think if you always operate with the best of intent for all concerned, then you will know you have done the best you can under difficult circumstances.