I really do appreciate your advice. And I know you are correct.
I'm not sad, just feeling a little tired of being the unselfish one all the time. I think that is natural, and I'm not surprised.
I will look up the threads you mentioned. Anytime I am faced with a new feeling/sitch, I feel I can use it to learn something new - both about myself and how to handle it better in the future.
I am better now - we have retreated to our respective rooms after putting the kids to bed. I lingered in the kitchen to see if she was going to shut her door without saying good night. But, she waited until I came walking past her door to say "sleep well." Ok.