... I know. [It isn't so much that.] I know, at the very least, I'll always be your brother. And your friend.
[He's just. gotten very used to being the most important ~~~ so having it be swayed slightly, or at least possibly so in the future, is not sitting well with him. Jealousy and scared of it ending -- these are all conflicting things he's never had to deal with before you, you know.]
I didn't... I never wanted it to sound like I think you're uncaring. [Earlier, that is.] I'm sorry.