After my husband passed away, I was sorting through his belongings when I found a garage door opener in his car’s glove compartment. We didn’t have a garage that needed one, so I thought it was a mistake. Curiosity got the best of me, and weeks later, I drove around our neighborhood clicking the opener.   To my surprise, it worked at a garage on the corner. Inside, I found an old car and a few boxes. When I opened one, I found dozens of letters addressed to my husband from a woman I didn’t know. The letters revealed a secret life he had hidden from me for years.