I am so with you Andrew - when we first got married it was 50/50 - if I did oral on her, she did oral on me... then over the years it went to 90/10 and then it went to "once a year" on a special day like my birthday - always a quick "1 minute, there I did it..." never a "I really want to focus on making you feel good..."
Now, it's more like never... unless something weird happens like she has a little alcohol AND she's had a good day AND I initiate just right AND she gets really hot AND AND AND... so, as such... it pretty much doesn't happen any more..
