Exactly! i was so confused with that, because they go into a completely different route in the following chapters to explain the situation... Like, the way he said it made it look like hanbit used his weakness to force him into babysitting the uke, and that was also implied in the flashback with the two of them in the car.. well idk anymore
For me the Seme talked like that over the phone with Hanbit because the Seme wasn't sure yet about his feelings for uke. He still trying to get courage and move forward from his past that's why when he confessed to the uke about his past it took him alot of courage to say it that at the beginning he used the uke to move on. Also Hanbit doesn't know yet that the seme and uke was starting to have a romantic relationship. It's understandable why the seme made it that way.

I'm confused about something (SPOILER)
Remember when the seme was on the phone with Hanbit and he was talking as if he was doing a favor by taking care of the uke and imhe talked as if he didn't care about the uke.
And yet apparently he was actually falling in love(right??). So i'm confused as to why he talked like that........