Push off a cliff: hGGG ozai. because fuck that guy.
Frick frack: Sokka! if only bc then it would be super hilarious and awesome and funny as opposed to zuko sex, which is probably a little awkward and also the Most Serious.
Marry: aang. lbr, this adorable asshole would be a GREAT husband.
Set on fire: The school teacher from the headband :D
Wrap a blanket around: azula. a fireproof blanket. probably with a pole. azula's evil but goshhhh I feel bad for her ;~;
Be roommates with: katara! she'd always clean up after herself and pay me her electricity bill on time and put away her dishes instead of leaving them in the sink like some roomies I may know.