Bored in my relationship

How can I bring up to my boyfriend of almost 6 years I’m bored in our relationship? I’ve brought it up before and nothing has changed. Every time I ask to go on a date he hits me with “Im too tired” or “I worked all day” (I work a full time job too). But he goes out on the weekend with his friends like it’s nothing. It irritates me. Money isn’t an issue, but even if I bring up cheap stuff to do I get turned down. He never gives me attention. I try to dress up and look cute and he just looks past me. I don’t suspect cheating. We are open about our phones and everything so I can just look Though his phone whenever. Please help 😭 I’m about to give up.