Thank you!
It was a complete relationship ruiner. Even the author realized that which is why the rival didn't appear again. She even mentioned that she had a whole plot point on it and killed it because their relationship wouldn't survive it.
I still think it ruined their relationship and they will eventually breakup. Because seme was absolutely heartbroken.
And we readers were completely blindsided. We were given this premise of a rocky true love that is first love for them both. Seme was a virgin waiting for him...
It just ruined it for me. Still haven't read the sequel sidestory.

Would've been great without the uke loosing his virginity to that random dude a full grown adult with him a minor nasty af really ruined it for me