i need sex

so my boyfriend of 2 years doesn’t necessarily have the highest sex drive... very strange i know. but im not sure if it has to do with his stressful job, aging, or something else. I’ve asked him plenty times and he repeatedly tells me i’m gorgeous and that he’s still attracted to me but we barely have sex. i’m 21 he’s 26. this situation makes me super insecure and i feel unattractive. it’s now been 2 weeks without sex and i freakin need it. i don’t want to cheat, and i’m not the type to take control, i like when the man is dominant. what should i do?