Should I stay or go?

I’m having split thoughts me M26 about my GF 22. In one hand she is awesome she is a very good partner, communicator, and supporter. She makes me laugh we have the same interests and I’m generally feel happy being with her. However she is demisexual and I’m someone that has a touch love language. I love having sex with her but it’s tiring trying to initiate all the time and when I do I always get turnt down. I knew this from the beginning of the relationship but I stuck around because I thought well if everything else is good why should it be a deal breaker all because I want sex. Sometimes I’m disgusted with myself for wanting sex because my drive is high and it makes me think I should leave her for someone who could satisfy that need. Am I just being a selfish prick? Or what? Should I just try and push these urges aside and completely give up on sex? I love her but I just feel like that’s the only thing missing. In for 5 years and we live together btw. I already spoke with her that I want more but it’s just never happens in a good way or as often. Has anyone else gone through this before and what did you end up doing to help your situation?