idk if he's happy with his sex life

Used to, our sex was...wow. Idk if it's because he's lacking energy or what. But we haven't been having a lot of sex recently.  When I do offer it, he declines most of the time. He knows he can get it any time he feels like it. He says he just doesn't feel up to it. That's fine, if he doesn't want to I respect that. But he's lost his stamina. we still have sex probably once every other week.  So whenever we do now, it doesn't last as long. I'm lacking that connection with him too. I don't have time to get dirty, and he likes to take it slow because if I take control and let him have it, bam. It's over. Hell promise me more but then make an excuse when I bring it up later that day.  I thought today, I would fix myself up, look all fine and stuff. He noticed, he said I looked beautiful and stared at me. He felt me up and walked away. I'm to the point where I kinda feel rejected and hurt EVEN THOUGH he's showing that he's attracted to me and telling me I'm beautiful. We are also starting to get snappy with eachother. I wish we could have more sex, but I don't want to demand it from him. I want him to want it. :( I crave that connection with him.