Yeah.
For my own interpretation he's just a young college kid who simply didn't wanted a committed loving relationship. And as some one else had pointed out to me chapters past, is that he simply didn't wanted to impregnate an omega, and get bonded to an omega. That's a pretty simple explanation.
Accidents can happen. And in this case, even though he had avoided relationships with omegas to prevent that from happening it still happened regardless.
It's similar to a lot of tropes I've seen where the CEO had been drugged and the female lead had been drugged, or one got too drunk, woke up the next day next to a stranger, and end up having a contract marriage. Or the baby momma runs away. Only to be reunited years later.

Okay, is it just me, or has anyone else noticed the complexity of the ML? At times, he shows glimpses of being thoughtful and kind. However, it is countered by forced intercourse, demeaning behavioral, and an arrogant disconnect with reality.
That last scene makes him look like a machine rather than human. Who is he really? We already know that he was raised by a neglectful nasty father. However, I am tired of that being used in plots to justify a crappy ML. However, I must say that the uke is a little too submissive (wishy washy type) for my taste. Although I do not like most of the ML actions, there is something about him (that je nais sais quoi aspect) that I find appealing at time (unlike other crappy ML in similar stories).
I do like the cute kid however. Show more kid.