Thinking about having a rather controversial event occur in my story and I was wondering everyone's thought on the matter. A [dark romance.] "Critique"

Tried Posting this to Webtoon Sub, but it largely went unnoticed. As this is a Fantasy comic that I'm loosely adapting from my Fantasy series, and this is where I used to post a lot of my questions, I figured I'd seek input here. I've had a lot of great advice from this sub.

I have two sets of siblings in this story. Two brothers from one family and two sisters from another family. They are noble families. Both brothers are involved with the sisters from the other family, but these relationships are secret ones for several reasons. Mainly because in this feudal system they live under, sons and daughters of the nobility are basically property and pawns of their parents.

The King of this realm arranges the marriage of his eldest daughter to the other family's eldest son. The eldest son however, is romantically involved with the younger sister, and eldest daughter is involved with the youngest son. Without knowing it, the King has upended established relationships, and forced a couple together that has MANY reasons to not want to be together.

The arranged couple meet in secret to discuss what a disaster this is for all parties involved. The four of them next meet and discuss what they all plan to do to avoid this mess, and settle on finding a living situation where the four of them can cohabitate, and behind closed doors continue their happy relationships while letting the public believe the married couple are actually happy with this.

Now we come to the event I can't decide whether I want to keep in or not. In all their worrying and planning to remedy the terrible situation they find themselves in, the arranged couple forget about the finer points of their culture's wedding ceremonies. They already know they have to kiss, and were dreading that, but midway through the reception, they're reminded of the bedding ceremony.

The bedding ceremony is the old medieval practice of the wedding party accompanying the couple to their bedchamber to ensure the marriage is consummated. The King himself calls for the ceremony, so the idea of objecting to it is a null point. And so the two unhappily married characters are spirited off to the bedchamber with a small crowd.

Here's the fork in the road and I want to know what sounds like a better choice. These two characters are both extremely friendly with one another, and both firmly understand that the other would not be in this situation if they had any other choice. Which is to say neither blames the other, and they both have extreme sympathy for the others position.

Choice 1- They're both like deer in the headlights when all this happens and neither can think of a way out without breaking up the "happy couple" facade they've been cultivating, draw the curtains on the bed and actually go through with it. Youngest son is instantly aware of what just took place and begins a murder plot.

Choice 2- One of them comes out of their panicked shock long enough to order everyone to leave for the sake of privacy. It's convincing enough that everyone leaves. They spend the night together realizing now that they're never going to be able to pull off this sham relationship, and feel doomed. Youngest son assumes they did consumate anyway, and starts plotting his brothers murder.

In either case, after a time jump, this unhappily arranged couple have a child together, and are for all intents and purposes now happy together, after enduring a few years of relationship trauma with their respective starting partners. Youngest son is the villain no matter what happens, he was already on that path before this mess.