Is Tom Cruise having a mid-life crisis? Is that why he's with 20 years younger Katie Holmes?

Is this why his wife is like almost 20 years younger than him? I mean, what's going to happen when he gets old and gray, and she's still young and beautiful? Will she still want him? Will he still want her? How will they be able to relate to each other when he's drinkin ensure and takin viagra and she's still up and vivacious? Some things to think of....