Hmmm....Your point is well taken re her using your pattern, rather than purchasing her own.
On the other hand, what about her offering you the use of her employer's facility and equipment. Did she have permission, was there a charge, did the employer get a piece of the action,etc. Consider wear and tear on the equipment, electricity used, etc.
Just sayin'.... Often in our goodhearted attempts to share with our friends, we sometimes drift off into a gray area of what is right and wrong.
Life is full of difficult decisions that test our mettle.