he guilted me into a yes and now i cant unhear it

we'd been chatting to a couple for weeks, i went off them after a video call she gave me the ick. told him. he went quiet. then came the "but theyve travelled from leeds babe", "we cant just cancel babe", "youll love them once you meet them in person". so i caved. drove down to ours. it was fine. it wasnt awful. but every time i think about that night what i remember isnt the sex its the kitchen conversation where he wore me down. its been three weeks and i havent wanted him near me. he keeps asking whats wrong and i dont know how to say "you didnt force me but you didnt let me say no either". im 36 hes 39, married 11 years, swinging about 2