
After rereading I think I know what Heart is up to. Victor wants to know if out of all of Henry's lovers, if he was loved the most. Heart is aware that he feels the way he does because he has Henry's heart, so in one of the chapters he also questions whether or not he'd feel that same affection toward Henry's other lovers. So I think he's been searching for the other lovers and meeting up with them to see how Henry actually felt, and whether he loved Victor the most or not.
Maybe Heart has been distant because he's angry that Henry DID love his other lovers, OR, he's angry at at the complete opposite scenario: that Henry slept with all of those people despite not loving them at all. Maybe Heart put the pieces together and realized that Henry was sleeping around with others to make Victor jealous.
Also, I can't believe I'm saying this, but Dick is growing on me HAHA what can I say, I'm a sucker for character development.

That scene between Heart and Victor after Victor lashes out at him really was so sweet ;_; The way he asked Victor how he'd like to be carried to give him a sense of choice or control after what he just went through is such a subtle but sweet thing. Victor saying Heart's warmth is new and unfamiliar to him just breaks my heart and just goes to show that Victor and Henry's relationship was pretty bad. If Victor has never been shown that kind of love before (from family or from Henry) then it makes sense why he's twisted and can be childish at times. People tend to reflect the environment they grew up in, but now Heart is here and you can see Victor slowly grow and learn from him (like deciding that he was going to apologize again to Heart once they got home).
I know I'm probably expecting too much from a comic that's basically just porn, but I do hope we get to see Victor continue to grow and I hope that's the point of the three lovers. I hope that he learns from them (or from dealing with them) and that their presence help him become more mature as well as confident in himself.

Ok it wasn't as bad as I thought it'd be, but it also just... was not good either. Honestly this sequel feels kind of pointless? Like it didn't add anything to the story. And I'm annoyed that Rou's takeaway from the whole thing was to avoid talking about Niko and his work with Yoshino. Idk something about that really rubs me the wrong way.
I can't get over Yoshino turning into a side character in his own manga, either. He's the biggest appeal of this series to me and seeing the author sideline him in his own series was a really odd choice. I just feel pretty disappointed because I usually love this author's works and I loved the first volume so much.
I'm so sad this ended with 13 chapters!! I wish this kind of cyborg or android bl was more popular (and no the series where the androids are visually indistinguishable from everyday people don't count).