[The offer isn't one Bolin takes as rejection, but it still feels like the wrong choice. His acceptance of going to Zaofu with her had cheered her up so very much when she'd heard it, and it just feels... wrong to abandon her to all of that by herself when she's there.]

No... no, I can do this. I want to be there with you. I want to help support you if I can.

[Clearly, he's trying to psych himself up for it. Because he does have such a strong devotion to Opal; he doesn't want to disappoint her.]

Unless, you'd rather me not come with you?