They married after five years together and after she had a child by him as I recall. Sort of puts right out there his level of commitment to the woman: I did it so my kid would inherit but it wasn’t worth it when it was just you.
No, not after 5 years together. After 23 years together. He's been with her since 1986 and married her this year. No sense of rushing into things--not even with a 5 year old son. With that knowledge and his comment about Palin, Letterman is a bastard with no respect for women.