r/l is r/l. Things happen that don't work within the boundaries of our Lifestyle Eutopia... so you have to adapt to the situation.

Maybe suspend your normal rules (after discussing with your Dominant of course) so you can bring yourself pleasure--or at least satiate yourself enough that it isn't bothering you. Maybe you go find a new hobby to occupy your thoughts/mind for a while...

But I say this with experience: COMMUNICATE with him about your needs... Dominants aren't mind readers, and men, in particular, aren't necessarily as good at reading the female mind as the female thinks... There's a really good chance he's so absorbed in r/l issues that he isn't thinking about your orgasms. It isn't that he doesn't care, it's just that he is tunnel visioned right now.

You should be the least complicated thing in his life: so as much as you can take care of yourself, and yet be supportive of him, the best. If you can approach him with a solution that is reasonable & rational, my guess his he would be very open to it. Very few Dominants are irrational so as to not realize that submissives also have needs...

Good luck in whatever you decide to do... but definitely COMMUNICATE...

...and on a side note: I agree with cadence. Pushing him into playing when he is distracted can actually be regretable & dangerous: you won't have a good play session because his mind will be elsewhere, and there's the chance that because his mind isn't 100% there, neither will his level of attentiveness to safety...

Just my two cents.