he came in my mouth when i told him not to.. now i feel weird

i went to go give my husband a head job ... we are married and i give him head regularly.. but ive never let any guy cum in my mouth. i just dont wanna try it and it makes me uncomfortable the idea of it. so he put his hand behind my head and was pushing my head down and after a while i pulled away cause i felt like he was getting close and he said "promise i wont cum, but u gotta try it someday... " then bam he came in my mouth. i spat all over him and was so pissed off and he was laughing and said "i didnt realise it was gonna happen" but i call bullshit. now i feel like i never ever wanna give him head ever again. am i wrong for feeling upset