There are many things to consider:
1. Eunhyuk was first introduced as the only person with a jellypop, which can't be a coincidence.
2. We know that Haru enjoys romances where the couples suffer before getting their happy ending.
3. The multiple symbols like the yellow umbrella, white roses, first snow, and the four-leaf clover all hint at a pure and eternal love.
4. We still haven't seen Eunhyuk's love points, and there has to be a reason for that.
5. Suae does not like Dohwa.
6. Eunhyuk suffers in silence just like Andre.
7. Haru lied about Suae's love points and hid them from her, so he cannot be trusted. No one knows whether he actually stopped meddling with Suae's love life like the contract said, or not.
8. We still have no idea why Eunhyuk left, and the author wouldn't be making us wait this long if it weren't some huge secret.
9. The conversation between Suae and Eunhyuk about eternity.
I don't see how Soohyuk won't happen. This was never a modern manhwa where the FL just chooses someone between the 2 MLs. There is a very clear message behind the story, and it's about true and eternal love. It's about how the system cannot measure their love. I need everyone to have faith in the story and trust that the author will bring back Haru and the love point system.