They need to talk. Be honest about both their feelings. Just reread the whole thing again and in the last chapter Yeonjo himself said even in the face of what he thought was death, he couldn't be honest
Idk what talking would lead to tho. In the end he did kill Yeonjo’s family. Even though they had some feelings for each other Yeonjo can’t let go of his resentment and ML /I forgot his name/ can’t stop being on guard and suspicious. That’s their feeling and it’s not going to give them solutions. It makes sense to let them go through much more hardships to let them be together.
Dang Yeonjo seems too broken… I’m so curious about how the author going to reconcile them later tho. Is the white haired guy second ML or just a villain?