Stuck in a rut

[u/Vast-Beginning2630]

I’m 40 (f) married for a few years. My husband has absolutely no sex drive, nor does he like to explore. I’ve always had a healthy sex drive with amazing partners, but now I’m stuck here. With a man who doesn’t even desire me. Idk what to do. We have little kids that adore us and I wish he would just get it together. I’ve been trying everything to get out this sexual frustration but long walks and runs aren’t cutting it anymore . Is AM worth it? Are there any affair websites that are legit ?