11 years and barely getting any...

So recently I got into a huge argument with my husband because he’s not giving it to me as much as I want to. Blames it on his testosterone and leaving his energy at the gym. Yet he looks at porn a lot on his phone. He recently told me that he only has sex to please me, and not really for his pleasure. He’s also told me I’m going through some sex phase, I’m only 28 and he’s 32. I mean and am I asking too much? We have 3 girls and sometimes I think we’re still together because of them. And I’ve mentioned it to him. So he uses that against me a lot.