Sad and unpleasured

During sex, I don’t get very wet while getting head or fingering. I feel like I can only get horny after watching someone else have sex. My partner is great , he tries his best but I don’t stay wet and I do not want to use lube. I just need find a way to stay wet and excited. I am excited and I want to do intercourse but me not being wet is like saying I’m not turned on. And it kinda angers me as well like what do I need to do