I believe you actually understood the concept but the wording confused you.
I agree. The sentence "any funds you receive after this will have been stolen by the partner" can also been interpreted as "you get stolen
after you've been ripped off by cheating partner", which doesn't make any sense.
@darkv0rt3x, that book is good. I had read it until onion routing, because that was the chapter whom I had the most questions.