That is both the best and worst possible way he could've gone. For everyone involved.
It can be spun in any way you want. Him redeeming himself. Him burdening her with his death. Selflessness or selfishness. The poor boy slave and the disgusting creep who continuously kept refusing to let go and be better.
Alas. Humanity.
I'm just seating here cackling cuz Damien overthrew his cousin on account of him being insane when clearly, it runs in the family lmao.
You need to throw the whole damn bloodline away atp.