Is Al Gore divorcing Tipper because she got old?

Just wondering if 62 year old Al Gore is divorcing his wife, 61, because of her advancing age?  Of course, she could be the one asking to end the marriage, but I don’t think so. He wants the divorce more than likely and at some point, some young, tight, nubile woman is going to come out of the woodwork (whether they began dating before or after the announcement) and she will have really shapely, cellulite-free calves, and perky breasts -guaranteed. But seriously, how do you throw away a 40 year marriage for firmer, younger calves and perky breasts? They’re probably not even real!
It’s a travesty.