nudes??

just to let y’all know, i don’t send nudes because i know about the consequences. so basically I’ve been snapping this guy and i sent him a pic that showed me in a tank top and my cleavage bc I have naturally large breasts. so he then asked if i wanted a dick pic. I told him no that I don’t like sending nudes and he said that I just sent him one. i told him no because i was wearing clothes and it was just my cleavage lol. can someone clear this up for me and tell me if i accidentally send a nude?