His wife is WAY too young for him

I just found out that his wife is less than half his age!! When they married in 2013, Stewart was 73 and his wife was 35. I had a lot of respect for this man (Star Trek), but now I'm sitting here scratching my head...

To put this into perspective - I'm 35 myself. Would I go out with a 73 year old woman (older than my mother)? You can guess the answer.