Just remind her that the jump from friend 0 to friend 1 is the hardest, then it is just exponentially easier after that. Plus moving or COVID, or moving during COVID is a double whammy, for making it harder to meet friends. Does she have any hobbies? I made my few friends mentoring/being mentored in my hobbie or fixing up old junk. Fixing up an old motorcycle or jeep in your front yard, you'll find out every motorcycle or old jeep enthusiast within a 20mi radius real quick, hah. Plus, I prefer working on mechanical stuff to doing cosmetic stuff, I found a dude who is the opposite, I'm learning a bunch, and I can swap engine rebuilding for him making my rust holes smaller, hah. I mentor two younger people too, 20 and 26, I'm 40, who want to learn how to fix old junk. This doesn't take much time, because learning to fix old junk is mostly about just doing it, if you have a more knowledgeable person than you to look over your shoulder, it can prevent that 5% of the time when things could go wrong, and can help more anxious people learn new things, even if they are worried about trying to learn it solo from YouTube videos or something.

Volunteering is a good way to meet cool people. Jerks usually don't bother volunteering for things, lol.

My wife really liked the book "let's get together" all about this subject, making friends and retaining old friends as we go past our 20's.