Yes, she insists on sex but not because she wants sex specifically (and she resents having it denied) but rather as guarantee/incentive for MC to try to uphold his part of the deal. She doesn't take offense if you tell her, "i don't want/need to have sex with you but i'll still help you" or when you tell her afterwards "fine, we'll do it your way but maybe i'll ask you to just hang around instead of fuck".Right, because you still have sex with her - at her insistence. The only way to avoid getting involved with her sexually is to stonewall her request completely. Unsurprisingly, she takes that rather personally.