
I’m pretty sure the bond happened because they already loved each other. Of course i think it would be good that Hyesung verbally says it but i’m not even sure if Dojin verbally said it himself. Anyway, if you aren’t sure if Hyesung like Dojin or not, you missed something because it was obvious before he even got pregnant.
Maybe the author is keeping a *I love you* from Hyesung for the end.

They bonded because both of them need each other. Accept both body and soul toward their partners. Hyesung feels drawn toward Dojin maybe because they are fated pair and bonded as they accept each other 100%. But legitly he never yet confessed his inner feelings. Maybe you are right by the time Hyesung confessed its like Love is an Illusion will meet the end. I just want to see he feel insecure and jealous as he felt Dojin become distant with him or knowing someone better? I just need more drama between this two. not in cringe way but more too lovable side. Maybe accidentally got 2nd perhaps

HELL YAS !!!
I definitly need to see Hye Sung jealous over Dojin

yes I just need to hear his confession. But Hyesung did say in previous chapter *without you I will die* something like that when he suddenly realizes he has bonded. Right now I want Hyesung just admitted verbally or win over Dojin if someone want to snatch him away from his. just that. The reader already knew Hyesung did have something for Dojin but we all just want him to admit it. Dojin knew Hyesung feel embarrassed but just make a bit more impact like *He is mine* or *Your are mine*
I'm still waiting Hyesung confessed to Dojin. Dojin madly in love with his wife. Yes they are bonded, married, had Byul, living together but still it's like one-sided. Hyesung together with Dojin because bonded, Byul and loved his in-laws. But he never confessed yet to his husband. He never felt rivalry jealous or insecure Dojin can be taken by others. I need more drama.
But Dojun and Hee Sung literally two-sided, confessed and eventually marry. Oh I've been waiting for Dojun and Hee Sung child.