<human>: Can you provide a brief rundown of the text in within 3 sentences?

I just turned 40. 

(I'll wait while half of Reddit hits backpage.)

Wall O Text:

So I just turned 40. Single, no kids, big city, have a lot of awesome friends. I'm the sort of person who will drag themselves from their deathbed to attend a friend's art opening, or manage back-to-back baby shower/bridal shower/engament party (hello, this Saturday). I adore my friends and they seem to love me back.

However, my bday party was this past weekend and about half the people who RSVP'd didn't show. I'm usually forgiving of this stuff but it burns me that I care enough to move mountains for other peoples' Important Events and what is an important event to me - MFin FORTY - was a "meh" for them. A number of them are people I have attended/gifted engagement party/bridal shower/wedding/baby shower/etc over the years.

I do NOT want to be a pouting party girl, and I'm usually good at shrugging this sort of thing off. But this has been bothering me. Short of calling them all and telling them "You hurt my feelings by blowing off my big well-planned party," does anyone have some sage advice? They have all been knocked down a peg in my friend ranking, but they've been emailing/FBing/etc the past week like nothing happened: no apology, no nothing. Guess I'd just like some words of wisdom/strength.
<bot>: People I consider good friends bailed on my 40th bday party. Help me come to terms to with it.