There is no answer to the question "Why?" that any of us will understand.

I asked mine, in tears, heartbroken and devastated upon learning of the other woman "Why would you do this to me?!" and his response was "I'm not doing anything to you"

I am realizing that everything he ever did was for him. His benefit. His pleasure.


That definitely sounds like it could be narcissistic, and that you have been being de-valued (with the laughing and the 'putting up with you') and are now being discarded.

Nicole and ennie are absolutely right.
He's accusing you and will never see himself as being to blame.
And he will never change.

My heart goes out to you.
I'm trying to wrap my head around my own experience and I feel your pain.