So this guy is supposed to do the frontend.
I do the backend.
I offer an endpoint.
He does his HTML+CSS magic.
Me: Cool but data is hardcoded. Could you get the data from the endpoint I sent you?
Him: "I'd prefer you do that, I can make a git repo so you download the front."

... So you don't do frontend, you just write pretty layouts. And I have to actually write the frontend logic? Go f yourself.