Being a single guy, I keep it pretty quite.
I would love to date/marry a female AFOL for sure. Most girls are not AFOLs however. More still would freak out and run out of my home if they saw how massive my collection was. Or worse... they would stay and try to force me to SELL IT!
That said, I've been living in Asia for the last 8.5 years and one thing I love about girls here is that many of them love Lego, video games, manga (ugh), anime (meh) and everything else guys seem to like.... many of them want to come over and build at my house if they find out about my collection!
That said, many here DON'T like it and would want me to sell it, and I'm moving back to the US soon where I know fewer still girls who will be impressed by a guy owning every castle set ever made.
One last thing... the part about career is spot on too... I need to change my name on my story website for that reason I think... I am a consultant for large companies and if they found out I was playing with a child's toy during my "wild nights" that might be... less good.