Boyfriend is Bored

so my boyfriend started having sex when he was 14 and has had a lot of it since, he's 18 now and i'm 16 and around 4 months ago lost my virginity to him. For the last month he's really wanted to try anal so i said we can give it s try (i'm pretty open ya new things) we gave it a couple of try's and it just hurt or didn't feel comfortable. Our sex like has been pretty average lately but last night he just got home from worked picked me up threw me on the bed and the sex was just going great like it was fun and sexy and then he stops mid way threw to try anal again and it just wasn't working i was just done by this point and made him stop and i went to have a shower after i got out i was really grumpy cause i didn't understand why sex isn't enough for him and why he had to ruin it like that, later that night we talked and it turns out he's just so bored of sex now, subconsciously i knew that for a while but now i cannot stop thinking about it and i hate myself for it, what can i do to make him satisfied in our relationship??? please upvote i need help!

also sorry it's so long 💛