Am not familiar with this case beyond what I’ve read.
Generally speaking, sexual abuse or rape, in an “adult’s case” (compared to a young child’s case) can often be hard to prove e.g. whether it was forced or consensual sex. Especially, if a man and a woman are married or in a relationship.
I’d suggest, apart from motive to lie or rape, looking into & examining personal & family backgrounds of both parties involved i.e. Theophanous, and “the woman”, over the yrs, might shed more light.
Many behavioural patterns & trends of an individual can be determined before they commit a crime (perjury, rape, etc...) , and can continue for years.
can be determined = and/or can determine, predict future tendency and/or behaviour.