@hihelenhi @ThinkOfABetterUsername
Glad it makes sense.
It's like it's, 'hey I've had so much sex with so many different women that I can't reasonably be expected to remember what happened with all of them, or indeed who they were, but it's not in my nature to have unconsensual sex, so I can be sure that I didn't.'
As a defence in itself, it's plausible.
It has a cool reasonability to it.
In other words not being able to recall in Itself does not necessarily point towards him being guilty.
Even though he may be.