Do you live in LA?

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I stopped trying to make sense of other people's wacky behavior. Especially people that I really dont know. I just dont care anymore. I realized how much energy it takes up to be frustrated, disappointed or hurt. I have enough on my plate. You did nothing wrong, and I can completely understand how you could feel disappointed. You put in the effort and were counting on someone to follow through. She struck you as trustworthy and then left you hanging. Ugh.
Frankly, people are just busy, forgetful, have their own set of problems. They can be neglectful and selfish...even forget their manners or be plain rude. It is no reflection on you xx
I am glad you have others that you can hang out with and rely on
Hugs to you.