Dealing with Hypersexuality in a Demisexual Relationship

i struggle with large outburts of hypersexuality and i used to think nothing of it until i got into my relationship a few months ago. ive brought up sexual topics with my s/o a few times and ive even mentioned i struggle with hypersexuality and she said there was nothing wrong with it. obviously i feel bad about it anyways and felt even worse when we’ve had to put a literal PROHIBITION of sex. she is demisexual but claims that she does feel a very close bond with me and that sex is okay she is just nervous and not confident. me, hypersexual and wanting my girlfriend, is unable to because she is not confident in talking or acting on it. this has arisen a lot of tension and restrictions for me, i feel disgusted with myself because of how sexual i want to be with her and ive communicated it to her and she has nothing to say to me. im so disgusted because its not hat i think of most of time. i try to hold back on even bringing it up to her but somehow it still slips when shes trying to NOT think about it. am i selfish for this? am i gross?