OK Jace, Clary. You need to cut it out. You are pushing this "sibling" thing way to hard.
Dear Jace,
This is only partially your fault. If you had been a gentleman and let Clary speak first, I have a feeling I wouldn't be writing this. I mean, I know it's not actually your fault and you needed to get that out of your system but you could have taken turns? Maybe not.
Dear Clary,
You need to be stronger than that. You could have easily said what you were trying to say after. You could have said no! But no. He says that he'll "just be your brother from now on," Was it the hopeful look on his face that made you say "Yes, That's what I want"? What made you say that!! You spend half you lives pushing the "We're still just siblings" but it needs to end. Right now.
L, AC
Then again, I'm talking to characters who will never actually hear any of this but still. Like, come one.
Thank you for listening to my rant anyway you guys.