BIG SPOILERS!! read at your own risk

I have been asked for spoilers multiple times, so I thought I might share with anyone else that doesn’t mind being spoiled. You have been warned!

So Chase actually ends up becoming more obsessed and sweet with Josh. The reason Chase seems like an asshole, is pure TRAUMA!
He has literally never had anything good happen to him (apart from wealth if you wanna count that as happiness).
When Chase was young, he was actually so sweet and loved animals. He would cry often because he was so empathetic towards everything and when his bird died, his family basically told him he was overreacting by crying…
His brother ‘Grayson’, has tormented Chase since he was a kid with his older siblings joining in from time to time. They might have stopped now that Chase is an adult but Grayson never stopped. Whenever Chase experienced rut he would rather pass out from the pain of not releasing than look for a random omega to sleep with because he actually believed you’re supposed to do that with someone you love. Grayson didn’t approve of this, so when Chase passed out from not releasing during one rut, Grayson basically set up a scene and made it seem like Chase slept with their family dog (which is why he’s terrified of dogs now). Chase also is an absolute virgin (-ish) but even he doesn’t know this, because Grayson told him that every time he’s passed out he has slept with multiple omegas (talk about mental torment). Josh is the only person he has ever slept with, years ago, that one time, which is why they share a kid which he doesn’t find out about till way later.
Chase also doesn’t believe he is above omegas, he absolutely HATES himself for being an alpha, and because he has been made to believe all his life that he loses so much control during his rut to the point of sleeping with a dog, he doesn’t even want to be alive. He secretly hopes that he would be lucky enough to sleep one day and never wake up.
There’s more but I would strongly recommend you read the novel (this is coming from someone who never reads novels being turned into a manga, but I enjoyed every second). What I’ve written doesn’t even explain half of why Chase is the way he is currently, but all that trauma, being used all his life, people never seeing past his beauty like he’s an object, and even never receiving love from his family. The public thinks he’s this playboy and monster always caught in drama but it’s far from that. This boy Chase is struggling to even want to be alive. Now he’s just guarded, he believes everybody wants something from him or wants to hurt or use him, which is very true, he is not delusional about this. But of course this means everybody gets the same treatment from him because he’s only known suffering. If his own family didn’t love him and even tormented him psychologically, then why would strangers love him?

Anyways hope you enjoyed this spoiler and I was able to articulate it well, my brain was throwing me too much information so it might be all over the place. Ask questions if you want (づ￣ ³￣)づ