Divorce because I betrayed her trust - THREAD 2

[DaB35]

Journal

Had a sad morning thinking about W. Various emotions really. Loss, frustration, hope, love, happiness.
I feel so sad that she has decided to throw away everything in less than 3 months.

What do people think about this? If I had been in a relationship with someone for 8 years and it was on the whole really good with no issues, and the person I was with cheated on me - let's say a physical affair lasting 1 year (to clarify, I have NOT had a PA) - I don't think I would just kick them out forever and move on. I'd think "hang on, we've had 8 years together. They've made a mistake. A huge one nonetheless, and I will definitely take time to forgive, but I like to think I will."
I think it would be rather offensive to chuck a relationship away "just like that"; surely the betrayer would think that the 8 years didn't matter one bit to me.

I'd weigh up everything:
Have they abused me? No
Have they stolen from me? No
Have they belittled me in public? No
Do we argue all the time? No

I'd then think "OK - you have really hurt me, but I want this to work out because what we have is worth saving. I suggest we separate for a short time, you attend IC, and then perhaps we see someone together (MC) in a few weeks once you've started sorting your issues out. I don't want to give up on this M."

Yes the trust breaking is a big matter, I'm not downplaying that. I'm just interested to know others' thoughts on this. I don't see how people can simply axe a relationship in what is seemingly a moment's thought. It doesn't make sense to me.