oopsylon says:
... That’s the point of giving Teddy the debt, right? So that Nicholas would be obligated to help him?
No more 'obligated' than you were. This was not what Teddy asked for or wanted, but was enough to discharge your Debt to him. Nicholas can similarly refuse to honour the debt (though, as an NPC, he can't roll) or split the difference and give Teddy something else that is not really what he wants.
It is out of your hands now, so, unless you get involved you have no say in how it goes. Unfortunately you are not so 'out' that any blowback won't blowback on you. Both Nicholas and Ravenhall might blame you. :)