Please no judgement I am starting to panic...

My SO and I have rough sex sometimes and I told him to choke me (yes I gave consent) he never does it for more than a few seconds or hard but I noticed this mark after and now I’m starting to freak out. I’ve just never had a Mark like this before ever? Does anyone know what this is?

His wedding band is textured so I’m not sure if it rubbed on my neck when he grabbed me or what this is from. Please leave the negative comments aside, how you like having sex is none of my business or place to judge