You should have just suggested that you have normal sex or said you weren't in the mood a few of the times when she wanted to do it.
Depending on how you told her it was too much, she might not have a problem giving them when you ask. If you gently just told her that you wanted to take a break from them for a few days, she may just be waiting for you to ask
. If you told her you don't like them or gave her attitude, she might not want to give them to you anymore.