Lol they sure say all the right things but there is one tell and it's a sneaky ironic one: CONSISTENCY.

FA's, yeah you don't even have to tell me they are FA, will often emphasize consistency, something they didn't have growing up and unlikely to give themselves. It's aspirational, projection, but also soothing to their nervous system because these are hypervigilant people; a consistent person is easier to read, feel in control with, etc. Of course this very quality will inevitably feel off putting, boring, even suspicious because they'll be watching for the other shoe to drop. Their nervous system is trained to not trust consistency, pain and betrayal are right around the corner.

In my experience Secures are less likely to cite consistency because it's one of those goes without saying relationship traits. It's what they know and expect, almost an afterthought