Anonymous wrote:

Anonymous wrote:Why do you care?

Because it is starting to annoy me after always paying and never being even offered after years or decades.

This is your own fault. It’s not “doing something nice” for a friend if you expect them to pay for you later and stew if they don’t. then you should always just split it.
I say this as someone who treats friends often. And I actually hate it when they insist on paying the next time because I got the last one. I have a friend who doesn’t make as much money and it’s my pleasure to treat. I’ve been very lucky. I think my luck should be enjoyed by us all as I wouldn’t enjoy our time together if I knew she was stressed about having to fit it in her budget.

"I have treated this childhood friend for decades including trips to Europe, Asia and the Middle East and countless domestic trips. She used to at least thank me. I think she has become very unpleasant. We probably have just drifted apart. I think the expecting for me to pay for everything when she orders things I know she would never order if she had to pay for it and then not even thank me does bother me now."

Op, you have a right to be upset, I would be upset too! She is now taking you for granted! Next time you go out, you should ask her if she can pick up the tab.