Oral sex?

When we first started dating my bf would always talk about how much he liked eating pussy and that he could be down there all day. From the start he didn’t finger a lot, but he seemed really into giving head. He’s given me oral a few times but it’s been months and he doesn’t do it anymore. I’m not a super big fan but I like it from time to time. I have good hygiene, shaven and I wash often, idk if it’s something I should be worried about or not? I’m very giving in bed and I actually prefer to give head than receive it but it just threw me off that he talked about it so much at first and now he doesn’t do it at all. Thoughts???