What normally I will do here is saying something like 'you're too beautiful that I can't hold them any longer'. This is something trying to give her some compliment and distract her attention from early ejaculation. Another easy way out for you is apologize, don't make sorry such a hard word. You may tell her this but not making this a big deal, what you need to do is prepare for another exciting session. You do not have the mood for sex and your penis doesn't seem to co-operate with you to give her a good sex? Well, sex doesn't mean you have to use your penis all the time. You still have your mouth and finger, some women prefer these more than your dick. Learn to use your mouth and finger, they will give her a big orgasm even without using your penis.
If you are so tired or totally not in the mood to please her, explain your situation to her and turn the exciting sex night to a warm and touching pillow talk. This may kill her mood so much, and depend on your partner's character, different people have different reaction to this. Don't do this so often else you won't have the chance to make love with her again, worst you may lost her ultimately. Well, I still prefer that you try it again, at least let your mouth and finger do the job for you. Women need to be satisfy sexually as well.