Even so, he forsook his duty. I get that he was upset, but I still don't see how he didn't abandon you.
I don't see it as abandonment when you pretty much told him "there's the door".
At the most you did the same first and he returned the favor. It's just...you made your choice. There was no secret about what was going to happen.
(That and recruiting Loghain once Alistair makes the ultimatum is just so mindboggling stupid to me I can't justify it (wait I can squint and see it with hardened Alistair married to Anora but outside that nope) outside metagaming for my golden ending and even that has hardened Ali king he's a fall back of a fallback plan.)
I mean Riordan "there's compelling reasons to have more wardens."
"so...you're continuing to insist we get the one dude into the wardens that Alistair has said he's gonna bounce if recruited leaving us with the same amount of wardens we began with in the BEST scenario and less if he chokes it instead of...the droves of soldiers outside?"
"Yah"
"..."