he clearly could’ve left at any time wanted.

Well, except the time he bolted to leave the room and she ran to shut/block the door so he couldn't leave.

And, no, saying he could have left after that isn't relevant as a a person shouldn't have to try to leave the room multiple times before they are allowed to do it.

It wasn't rape as he ultimately gave in at the end, but if he could have left any time he wanted, then he would have been allowed to when he tried.

Take your harmful agenda elsewhere.

I mean, your take here is quite harmful as well.

Rheanyra denied him of his choice to leave the room when she blocked the door and continued to pressure/seduce him even after he told her to stop.

Yet the whole 'the man smiles throughout' and 'he could have left any time he wanted' points are blatant lies to defend her ignoring his wishes multiple times.