[He sighs at her reaction. It was like he had thought before. It must have been because she had been made female. He'd never understand her, at least not completely]
No, I wouldn't know what that is like, but acting like I just insulted you is not the way to do it.
[Deciding to continue that thought before she took that out of context, he adds] If you like him then there is nothing I can do about it.
[Sorry, not going to say 'love'. Still having trouble admitting his twin is in love with a Gundam Meister]