Oh, I'm glad your scale was broken! LOL!
I have learned that strenuous exercise rarely ever shows itself on the scale. That's really frustrating unless you can wrap your brain around the fact that weight loss is not linear and that it seems to be 80% diet and only 20% exercise. Exercise tones me amazingly. I can't believe how toned I am with not a whole lot to show on the scale. I have been known to drop a full dress size without seeing any movement on the scale. It took me a long, long, long time to figure that out.
Further, I have discovered that I lose two weeks out of every month and I gain/stall two weeks out of every month. It doesn't matter what I do. Last week was part of my stall and I did three days of 20+ mile bike rides, a full day at an amusement park with fewer than usual calories and way more than usual water, three intense days of spin cycle class and strength training. It didn't matter...I stalled anyway. Then today the scale finally moved again and I know I'm probably in a losing pattern now.
Try to focus on the other benefits of exercise. Toning, blood pressure, increased energy and fun!