Sexless relationship

Hi! Sorry for post anonymously I’m kind of embarrassed and going through a lot emotionally. I’ve been committed to this guy for three years now. I love him with my heart and soul. He loves me a lot and it shows but we are pushing through a sexless relationship. Absolutely no sex in the last two months and before that it was once a month. For almost an year now I have been suffering trying to tell him that I need it. My self esteem is below ground zero and I am not ugly looking. I have other men hitting on me on insta and all I can think about is when will my guy speak to me this way? We live in the same house and it’s creating this awkwardness between us. There is this feminine energy in me that wants to show him what I am worth and make him beg me for sex like I did.. then there is this side of me that is tired and does not want to wait for him anymore.. I’m torn between cheating on him and doing the right thing but not knowing what that right thing is.. sorry for the long post.. I’m literally venting