So, you did not submit earnest money with the offer. The offer is not
enforceable without consideration. Don't sweat it.
I think you'd feel better served and less worried if you were working with
your own agent who had produced a cma of any property in which you
are interested .... after having shown you all the properties that match
your criteria and talked over the plusses and minuses. Remember,
your own agent will get to know you and won't charge you for his/her
Naturally, you need to run everything by your lawyer. But my advice is don't sweat. The seller is an idiot. A real idiot. They have no earnest money so you have nothing to lose.
Go get a beer and relax.