Giles but you were abused...or I don't understand. Either they harassed you so much that you felt the easy option was saying yes, or they didn't and I don't get what you are talking about.
I think that you aren't getting it, MrG, because it's not a situation that pops up in your life. You've never ended up (through one of those situations where the social pressure to be polite and just go along with having a cup of coffee or whatever the pretext was) alone in a room with a much larger, stronger individual who clearly wants to have sex with you. And you don't know much about him. (I'm speaking from experience here). Do you (a) walk out, which involves walking past him, with the attendant risk of aggravated rape, i.e. rape with a side order of a beating up, or do you (b) lie back and think of England? It's a fucking terrifying situation to be in (I was 18 at the time). In my case, I did the calculation and reckoned that this particular bloke was probably mostly talk, and I could walk past him.
I happened to be right. Sheer dumb luck. One of my closest friends did the same calculation at the same age, and ended up being violently raped, then disbelieved by her mother (because date rape wasn't a thing), then in hospital for a suicide attempt. Again, sheer dumb luck. The friend I mentioned upthread went for the shut your eyes and think of England approach, and has gone through life telling herself that the sex, if not exactly consensual, wasn't exactly non-consensual either. That level of cognitive dissonance is hard to sustain though, and flows over into all sorts of other areas - she also spent 20 years in an abusive marriage, for similar reasons I suspect.
That one naive mistake - thinking "coffee" really means coffee - leads you into a terrifying situation which feels like Russian roulette. Maybe they'll back off and you'll walk out unharmed. Maybe you'll get raped, with an added beating for good measure. Perhaps it's safer not to pull the trigger at all and persuade yourself that the ensuing sex is "just bad sex." Who knows? You're not in the head of the bloke opposite you, you just know he could turn extremely nasty on you, he might not, and the odds feel about 50-50.
So yes, your I don't get what your talking about sums it up rather nicely. You obviously have no idea of what it feels like to be a woman in this sort of situation.