My boyfriend (20m) just expressed to me (21f) that he has a CnC kink – I don’t know how to feel

Hello! Just jumping right in. My partner and I have a very healthy and comfortable sex life. There has NEVER been a time where I have felt pressured to do anything or give in for his own satisfaction if I didn’t particularly want to partisipate. There have been times where I have denied sex or denied sending explicit photos because I wasn’t in the mood. I inherently feel guilty when I decline these things and he’s quick to comfort me and assure me that it’s okay and I never have to do anything I don’t want to and if I don’t want to he doesn’t want to etc. I feel we have a pretty vanilla? Sex life. It’s great and we usually use toys and stuff but that’s about it. Today he sent me a text saying “what if you pretend to be asleep and I do whatever I want to you?”. I replied with “is this your way of telling me you have a cnc kink?” He said yes but I think he could feel my hesitation and apologized for saying anything and tried to comfort me and stuff and I told him I was happy he told me because im willing to explore anything and I truly am happy he feels comfortable enough to express this to me. I never kink shame and we both want to make the bedroom as comfortable as possible. I’ve even had fantasies like that but attaching them to “CnC” made me a little scared. I do have sexual trauma and have been raped and it’s kind of making me spiral. Now I’m having thoughts about if I should fear him for having this kink which feels so so awful. I told him we would obviously have to talk it through and have a safe word and everything under the sun which of course he was two steps ahead. I really do want to do this for him but I don’t know how to get over the intrusive thoughts.