Please do not bathe the dog every 2 weeks. Max once a month if required. Otherwise you can just wipe her with a wet towel and then dry her. Or use sprays that are available for dry bath.
Look dogs have body oils and if you regularly bathe them they will loose it, but natural. Then they can get a lot of skin related problems.
Another thing to keep in mind is that bathe with luke warm water and not cold water. After the bath make sure she is dry. Give her a good rub with a towel and also be carefull that no water goes in her ears.
Incase there is some other reason why you bathe your dog so regularly then let me know and I can try to find the problem if there is any. I too have had boxers and they are a great breed, require regular exercise. Also start training your dog and her should not be allowed to pull on the leash and jump at people even in play.