something wrong with my sex drive

Maybe TMI, but I have a problem. I've always had a high sex drive, normally it's even higher than my partners. But last night I wanted sex but I couldn't get horny at all! My partner got me wet but I didn't feel horny at all... I told him we should have sex anyways and see if that makes it better. So we had sex. I felt absolutely nothing... And normally I get horny if he so much as touches my leg... So anyways we stopped... so about 20 mins later I was still feeling pretty shitty about the whole thing. . and I said jokingly "I'm gonna watch porn and try..." and then me and him decided it was worth a try😂😂 so I'm sat watching porn for about 10 mins. Still nothing... Till I look at him lying next to me in bed and he has a hard on and is slowly running his hand up and down it... And I instantly got turned on and practically jumped on him and we had great sex😂😂 BUT WHAT IS WRONG WITH ME?? I ALWAYS HAVE A HIGH SEX DRIVE!!