What to do !?

I am in a LDR . My Boyfriend always talk to me even being very busy . He cares about me, But whenever we talk, he starts talking about how was his " EX'S RELATION " with him about what he used to do . It's annoying even though his ex is married now but i think he cant get over it . He's not romantic if he is its just about "Sex" . Its been 2 years n he dont come to meet me. We only met like 15-17 times that only for some time .

What should i say to him or do ! 😣