Time for divorce?

TMI - sex. Tldr; we have little to no sex anymore. My husband and I have been together for 6 years. When we first got together, the sex was great, and all the time. I have an incredibly high sex drive, so it was perfect. Over the years, its reached a point where he has almost zero interest in me. We have had sex a total of 6 times in 2023, and 4 of those times were because I pushed for it. I have done research, talked to him many times - tried everything from being encouraging to crying about it. I have sent him to therapy. I have gone to therapy. We had him checked at the doctor. I have been trying everything I can think of. Sex once a month just isn't enough for me. I can't take it anymore - it's making me consider an affair, an open marriage, or divorce. I never saw myself in this position, and I just feel so lost. Without me initiating sex, it took him 3 months to initiate. And its so few and far betwen now, that he just doesn't last long at all. And - TMI - but I need actual penetrative sex to orgasm. So I'm really missing out on a need. I just dont know what to do. Please don't judge me. I'm here asking for help. I'm in a very vulnerable and depressed position right now, and I desperately need advice. Thanks ladies.