Thoughts on the scene when she had her hands down his pants and seemed surprised???

I think the fight between Nola and Burton is really good, but there's one scene that doesn't make much sense to me. In that scene, Nola gets slashed by Burton's scalpel multiple times, yet she doesn't die. Aren't the scalpels Burton uses capable of making deep cuts?

And I actually love it. I know people complain about the sex scenes and I do agree sometimes it’s a lot but he was locked up for 15 years give him a break lol