After Hotaru's mother died when she was a kid, her father got a new lover, but she didn't want to look after Hotaru, so Hotaru's father was basically living separately with his lover, not really busy working. That's a big part of why Hotaru was so lonely and why her self-esteem was so bad, and why Yuma meant so much to her. Hotaru moved out, so her father is back in his flat, with his lover. Yuma asks him where Hotaru went but he doesn't tell her, since Hotaru apparently told him she wanted time to establish herself. Yuma doubts Hotaru will contact her so isn't going to just wait. Fujiwara also doesn't know. Yuma asks whether he loved Hotaru and he basically tells her the relationship was just form and he wouldn't have cared if she said she wanted to break up.
Magazine next issue preview says next chapter will be "climax", which usually means the last.