
I hope he really ran away this time, so that he can have his freedom.

Except that's clearly not what he really wants, he only even ran away because he overheard a snippet of a conversation and jumped to conclusions... Again. The same way he tried to leave SOLELY because he was hurt when he thought Dojin was just using him as his "muse". He loves Dojin, he loves Byul, he's just scared because of his parents' relationship. He doesn't want to be used.

I can understand your thinking, but I don't like how Dijon kind of wanted to use the baby to make him stay by his side. I just don't like such methods. For me it would've been better if there would've been a baby after they really started to date. And when both of them would've been ok with getting a baby.
I just hate to be cornered so much myself, so I don't like it when stories turn out like this.

Agreed, and I can appreciate Dojin's reasoning that he was desperate and didn't know what else to do to make Hyesung stay but that doesn't justify his actions either. Hyesung was right to remind Dojin of those words because I honestly believe that Hyesung wouldn't have left if he hadn't overheard when he went to check on the baby after the nurses took him away. He would have stayed for the home and money and security and he would have bonded with his baby giving these new young parents a chance to figure things out together...sometimes in desperation we can take things too far by saying and doing things we dont really mean and it will almost always make things worse.

He gave Hyesung the choice to have the baby and when Hyesung agreed to he decided he'd take the 5 month pregnancy term to woo Hyesung.
Here are the pages:
1. Dojin telling Hyesung it's his choice midway through: http://www.mangago.zone/read-manga/love_is_an_illusion/uu/love_is_an_illusion-chapter-20/10/
2. Dojin admitting that he plans to marry Hyesung: http://www.mangago.zone/read-manga/love_is_an_illusion/uu/love_is_an_illusion-chapter-21/12/
3. Hyesung saying he's decided himself to keep it: http://www.mangago.zone/read-manga/love_is_an_illusion/uu/love_is_an_illusion-chapter-21/13/
4. Here is the profit for keeping the baby, he had incentive and chose to keep it: http://www.mangago.zone/read-manga/love_is_an_illusion/uu/love_is_an_illusion-chapter-21/15/
Dojin was planning to convince him more to keep Byul, but he never had to because Hyesung saw the profit and chose to keep Byul himself.

The baby wasn't forced on Hyesung and the pregnancy was only "used" in the sense that Hyesung made it a condition that Dojin would have to take care of everything and wait on him hand and foot for the duration, thereby allowing them to be close for a long period of time and giving Dojin opportunities to woo Hyesung. It wasn't "Byul" he was using, it was the time together. He genuinely wanted Byul to be born as evidenced the ENTIRE pregnancy and after.

Guys was he really marked? I mean was he in heat? If not then it'll fade away.
If anyone has the raw, can you send a link?

https://www.facebook.com/pg/queenyaoi2018/photos/?tab=album&album_id=555257738237843
He was marked. He's mated now, so his body rejects Utou

what does Karasuma says can you translate it?

He comforts Utou and says that a mate won't always ensue happiness. Utou just, heartbreakingly, laughs and says "I always thought the one beside the smiling Sumi would be me..."

dam you summmmmmmmmmmmmmmmmi

i was listening (/TДT)/ human by Christina Perri while watching the and wow it suites utou's situation so dam perfect :D

Dude you make him cry instead of smiling. Sumi was so insecure being an omega and knowing Utou was still in love with Karasuma + compared him to Karasuma resulting a complex inferiority. I can’t blame him because he was in an unconfortable situation. Also, I think He misunderstood Utou when he couldn’t go to the meeting maybe he thought Utou doesn’t care about him anymore and it was time to give up.
I really want to know what they are talking about in the apartment

Yes but then why he goes to utou’s house??? If he gonna go to his house waiting for Utou he could wait and not have sex with the alfa ...... he should wait!
No no no no that is so wrong. In this Manga is to much BL chemistry to develop a hetero couple.
(Crowley x Ferid, Guren x Shinya, René x Lacus etc.) There is no space for Yuu x Shinoa, we want Yuu x Mika.
Yes they are a perfect match.