I'm Doug, and I'm very sorry to hear of your situation. My goal is to provide you with excellent service today.
You need to understand how a spouse benefit works and how it is determined. First, the greatest benefit a spouse can receive is 50% of their worker spouse's benefit. But at age 62 you would only get a maximum of 35% because you would be taking an early spouse benefit (before you reach 66).
Additionally, a retirement benefit is based on 35 years of earning history and 13 years of a good salary would not translate to a high benefit for your ex. I suspect what you were told by social security is correct and that you will have little to gain by taking a spouse benefit----at least before age 66.
At age 66 you may file a restricted benefit though, and take 50% of his benefit while allow your own benefit to increase by an additional 8% per year up to your age of 70---and that can significantly increase your own retirement benefit.
You may reply back to me using the Reply link and I will be happy to continue to assist you until I am able to address your concerns, to your satisfaction.
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I wish you and yours the best in 2016,