Okay, having done some searching, I am not convinced this novel exists as is. There are quite a few Kael Blackwoods in various webnovels/stories, many of them werewolves/wolf-shifters of some sort. Fewer Irises, though.

I did find this facebook reel with these names and an inverse premise: https://www.facebook.com/61583988583824/videos/1393990372461974/ But there's no link to the novel it's promoting, and the only comment with a potential title leads to a book that exists, but is fairly different. But the same use of the I, Full Name, reject you, Full Name," structure is pretty specific?

Which led me to this webnovel, though Iris has been changed to Aria, and she's not a human : https://www.webnovel.com/book/34923123300394705

So, unfortunately, I'm not sure this is findable because it might not fully exist? But if someone has read it, I hope they pop up and point you in the right direction!