From fanbox. Cover page from twitter. https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_674037/ https://www.dlsite.com/maniax/work/=/product_id/RJ01478780.html https://msi12c.fanbox.cc/posts/10641314 https://x.com/msi12c
Boyfriend is more or less left without lasting damage, with his Netorase hobby not utterly destroying his relationship with Kaede. After asking Kaito to help him conceive a child with Kaede she does want her boyfriend / fiance to have a 1-on-1 with her still, wishing for her baby's father to be left to fate.
In the end, as married couple, Kaede's belly has grown big 6 months later, the boyfriend (now husband) contemplates about Kaede becoming truly hooked with Kaito as her partner so they are still sex friends, Kaede has truly become what her husband wanted. Kaede in turn reminds her husband about the paternity test results he didn't want to see at the last minute, telling her not to show him and rip it to shreds, she says the little girl in her belly is his... but he doesn't seem to believe it, she insists it is, Kaede was sure the moment she heard him say he will love her and the child no matter what back during their maternity clinic visits, she will stay with him forever.