New guy started videoing me?

I (35F) just started casually dating a man I used to work with, the first person I’ve ever been with since my husband left three months ago. I was going down on him, my eyes were closed and then suddenly I saw a bright flashlight and opened my eyes and he was pointing his cell phone at me. He continued holding it there for a few seconds until he realized my eyes were open and said “nothing, nothing,” and quickly put down the phone and I saw it was recording a video. I was too nervous in the moment to ask what he was doing. He seems like a really nice guy, but this makes me not want to see him again. Why would he do that? I am so done with planet earth.