Next time, don't drink and have sex. Consider yourself lucky that you give her cllmaxs that strong. Hot sex has a way of doing that. Many girls don't get them. During a incredible cllmax, she may not hear anything you say or even remember anything she says.
It's the day to day talk between you two that really counts. Relax and don't act insecure. Don't bring that up to her again...it won't help or change anything.