This is a great comment. I live in Seattle, and I think the Seattle Freeze is largely a tragedy of groupthink. If you want to break out, there are a ton of opportunities to learn about this city and meet interesting people. Here are a couple networks that might help someone get started:

https://www.facebook.com/SeattleSocialCircle/ https://theevergrey.com/

Getting out of my loneliness was a struggle at first, but after putting in some effort, I now have a great friendships that will last a lifetime. Not only do I feel comfortable meeting new people, but I really enjoy the process as well. Here are some books that have helped me break out of my "freeze" depression:

https://www.amazon.com/Charisma-Myth-Science-Personal-Magnet...

https://www.amazon.com/Power-Now-Guide-Spiritual-Enlightenme...

YMMV, but putting in the effort to understand and connect with new personalities has greatly improved my life.