What do I do?

Okay so I have a super high sex drive, every time I see my fiancè i want to have sex. And even after weve had sex i want again, sometimes 3 times in a row but he is quite the opposite i dont know what it is but it's like I have to beg him for sex almost he acts like its a chore. He only lasts like 10 minutes each time which to me is nothing at all. Ive never really even been close to an orgasm before. He finishes when I'm starting to get into it. But I dont know why he is like that? I feel like he isn't attracted to me and it makes me feel like self conscious even though im a generally confident person. Idk help please 😭😭😭