I have high standards professionally speaking and am selective who I am friends with.
Saying that, I don’t expect the world to work perfectly at all times. There are usually 200 reasons why someone isnt replying right away: sick child, death in a family, marital issue, phone got stolen, explosive diharrea, you name it.
What I find to be helpful it’s to have some humility. The world does not evolve around me. If I am in crisis I call 911. Or go to ER. If it’s not an emergency I can wait.
Letting things go saves me ton of headache. Life is too short to worry about every little thing.