When she talks about fight or flight, she is probably talking about emotional flooding, which is a really good concept to know about if you're in any kind of intimate relationship, but especially if with person dealing with trauma...
Hi, this is quite similar to something I've experienced recently, so I thought I'd chip in. I'm a woman who has experienced some (relatively mild, untraumatising) sexual abuse, but I have had relationships with women who have been molested, both in childhood and as adults, so I know a bit about...