re: Spinoff: bigger red flag- 35 and divorced twice or 35 and never married?

I only have my own experience to speak from. A woman twice divorced at 35 would be a huge red flag. Not having been married is not, unless she is a clinger-on type. Example:

My wife was 33 when we met. She'd never been married. No kids. We've now been together 18 years and married 16 years with two kids. However, that early focus on her career paid off. She's sold one successful business enterprise she started to Ross Perot and has been a corporate exec. at Dell/Perot for the last ten years, only recently leaving to help start another business and also accepted a senior management position for a Forbes top 25 company as a cloud systems architect.

So my experience would say, nope, not a red flag to have not been married previously.