I agree, at first. But then I always find myself thinking, I hope she decides to turn this into a bj. Because when she volunteers a handjob, it's like a statement that she's willing to get you off, but she's too tired for the effort of actual sex. So a bj is like the best case in that scenario. But asking for a bj and having her say no pretty much turns the handjob into a shame spiral that only ends with you finishing as quickly as you can while you're silently pissed that she didn't care enough to take her nightguard out. So instead of asking, you just kind of hang on long enough to find out if she'll start on her own, before acknowledging your situation and taking the quick release while secretly wishing you'd gotten something better. And I never know the protocol afterwards. Do you say thank you and go to bed? Wait for her to wash her hands and hopefully she brings back a hand towel or a washcloth or something? Do you get up first and bring her a moist towelette?