I want to say one thing.
Everything would have happened without Hae Won present.
In this roller coaster ride, everyone is the antagonist.

Even the husband, the man who coasts on the brink of insanity, shows signs that he would have killed woo jae the minute he awakened. No one believed his watchful eye over the comatose body was to apologize ?

BUT hae won, would have had no justice…

So she extended the life line and retrieves him from a sunken bed in Ireland. (Essentially giving him one last chance at life.) However, woo jae would have found hui jui himself after waking up and regaining his memories. Even if years later. He would have came after hui jui and ruined her life without hae won’s help. And Lisa would have chosen to save her mom regardless of hae won’s interaction.

Think about it. Hui jui and woo jae was destined to end one another. Hui jui could have gotten off with self defense and returned to life as normal. Woo jae would still be six feet under.

But. Hae won would have had no justice.

Hae won was more than just an envious woman. Was she even that? Let’s not give her so much credit. She’s a pitiful character who adored only two people in the world besides her grandfather. She was crippled by the experience. Her hatred was more obsession, she wanted to be seen by the two she loved most. She wanted to stick around even if it meant allowing them to continue their affair (which she did, and held back more than many would be able to).
She knew they would end each other. Almost like a bet, she watched for her rival to break, but eventually saw that woo jae would self destruct first. She didn’t stop him from leaving that fateful day. You die or I’ll die, we’re her last words. Sending him out in more rage.

She needed that painful experience to get to the other side, to see the light again, and continue on her life. Years before she said cheerfully, “it’s better to learn the skill of art later in life than to loose your passion earlier in life.” She gave hui jui the skill of art, and abandoned it herself. Was it time for hui jui to pay her regards? After stealing everything from her?

In the end. They all granted each other a lifeline. Use it wisely and make your wish. Hui jui (a wealthy lifestyle, AND a true love affair), woo jae ( a hopeful romance for his rebellious life ). Hae won (to become Hannah again, but through a dark kind of inspiration)… A twisted love triangle indeed. Without woo jae, would both women have eventually ended each other? Or was it a miracle they removed the venom which caused them to fight.

Wouldn’t it actually be more pitiful if hae won came back crying and begging for her unnie to apologize? She had every right to pop up and demand an answer about woo Jae’s whereabouts. He was her legal spouse…I’m actually impressed such a happy go lucky girl could morph into such a twisted being who was still able to appear normal outside the secrecy circle.

And I believe, hui jui will be reunited with her family again. Lisa will confess eventually.