Verso did it all for his family. He and Renoir were the same in that regard, they accept that the people in the painting are real, but wish for Aline to heal more than anything. Of course he still truly cherishes his relationships with other people like Sciel & Lune.
And then his sister did the exact same thing as his mother. Knowing she will eventually become as miserable as his mother, unfortunately for him, there was only one solution to this.
Yes he hates his own existence, would rather die, and wishes Aline had never painted him or given him the memories & personality of Verso in the first place. But if he could have found a way to preserve it all along with his family outside the painting going back to normal, he would've done it. It's why he helps Alicia in act 3.
Verso's life is a tragedy.