Hello, Anon. Thank you for writing.
Sex, for most couples, is an important part of the relationship. There is nothing wrong with wanting to have sex with the person you love. You may need to rethink this relationship and perhaps move on if it's not something you are willing to do without. And should not have to do without. Below is a link to an ongoing thread on this subject. You can read through the comments, there are many! Or post there as well.