Same! CIN2, procedure done, awful experience. Initial support and sympathy from my partner when we attempted sex a few days after (I wasn't given any post op info telling me not to) and I bled horribly. I think fight/flight instinct really helped the situation there actually, because I was scared and very embarrassed and he was much more sympathetic and understanding than I could have imagined. Since then, when escalated, he will say mean things about my situation saying cancer is hereditary and it's not his fault. (I wasn't directly blaming him, but it is very possible he contributed to the circumstances that led to this.) And for what it's worth, it's not hereditary. Post procedure check up revealed the CIN is back so I may have to have the procedure done again and we may have to make changes to our sex life moving forward. This time around, I gave him the bare bones of the information so he would be aware, but I have since learned not to go into detail about this stuff with him, especially not too far ahead of time. I'll tell him about an upcoming appointment a week or so ahead of time. If I need him to drive me to the appointment because I won't feel up to driving afterward? I'll tell him the day before or the day of. Otherwise? It seems to be too much info for him to know or too much emotion about it to process.
Still sucks though.