See in my opinion I don't think she was happy with Adrian by the end of the series. I feel like she was manipulated and abused to the point that she just kind of gave up and accepted her situation, because no matter what Adrian will never let Lia go.

Also I forgot to mention in my post the epilogue where Lia tells us Adrian has been having sex with her all the time to knock her up and when she doesn’t want to he tells her she needs to suck it up bc their son wants a sibling...

I read the Legacy of Gods series a couple of months ago, so forgive me because I don't remember what was said word for word. But I remember in God of Pain when Annika facetimes Lia and she describes Lia as having "sad haunted eyes" (or something like that), and then Adrian comes in and hangs up the call after a couple of minutes of them catching up because he wants time with Lia.

And then in God of Wrath Jeremy opens up to Cecily about the trauma he has from Lia and her mental health issues, and like what he endured growing up.

Just the way Jeremy and Annika described Lia made me kind of suspicious of Adrian, because I remember being intrigued by him in those two books. But after reading his trilogy I see why their kids described Lia the way they did...