Why I hate Aetna

I'm so furious right now. I just found out Aetna will not cover the Mirena IUD. As you can probably ascertain from the fact that we have both male and female infertility and had to do IVF with ICSI twice, I've never needed birth control.

Now while I completely understand that birth control is not always covered by insurance plans, I find it incomprehensible that Aetna would not cover this simple in-office procedure when it is medically necessary for Endometriosis patients.

Aetna would rather fork over $30,000+ every few years for me to have an operative laparoscopy to remove bilateral complex cysts and endo adhesions than to pay less than $1,000 to curb the bleeding for 5+ years. They would rather pay for all the ultrasounds leading up to the surgery, reproductive endocrinologist's visit, the surgeon's time to perform the surgery, the time for a GI specialist to be on hand, the anesthesiologist, the surgery suite and related hospital costs, all of the nurses before, during and afterwards (in the PACU), the pharmaceutical expenses, etc. etc.

If I had to do the math, I'd say it's a questions of:
60,000+ every 5 years for surgery
1,000 every 5 years for the IUD

I'm dumbfounded by their stupidity and shortsightedness. It makes NO financial/business sense, no personal sense and it just infuriates me beyond reason.

Why is Endometriosis so misunderstood, and why does it have to be such a battle? As if dealing with the never-ending pain, infertility and emotional issues aren't enough.