Why is making friends so difficult?

I've moved back to my homestate in March. I had like 2 old friends I hadn't seen in years, we liked/commented on FB. Once I got out here, they both were too busy to meet. Then I attended a ton of Meetup events, I kinda made 2 friends, the 1 she invites me to things and I her but we're both busy and she has an active social life. We still have not met up despite texting the past 2.5 months! The other gal, she invited me to an event last Friday, she also invited 5 other friends. Which is fine, but I can see maybe the writing on the wall. "Too busy" to hangout. I'm tired of doing things alone! The Meetup events are not a guarantee you'll connect with someone. Everyone seems so busy to develope a friendship!

Why is making friends so difficult?
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