Okay, so I'm listening to Dear Theodosia, and I noticed something. And... it's the difference between Hamilton and Burr.

"I swear I'll be around for you." That one line

Alexander says "I swear" but Burr doesn't sing in until after that.... he knows his job will get in the way of his family, so, he won't swear to be around because that might hurt little Theo more. Alexander however doesn't know his limits, unlike Burr, he swears he can balance everything, but he can't. Burr knew his limits, Hamilton didn't.

Also, Burr sang "I'll make a million mistakes."

He knows he won't be able to be the best father little Theodosia could have...