I realize that I am probably just venting at this point about my wife, but let me provide you with her schedule for sex:
Monthly -
The week - certainly not
The week after - Still recovering from the week
The week before - so b**chy that we fight the week
Middle week - Maybe, see weekly schedule

Weekly schedule -
Mon thru Friday - too busy
Saturday - must go for my long run, not afterwards too dirty, not after a shower, now I'm clean, maybe during the shower if all conditions are met
Sunday - too busy

Daily schedule-
Never at night, can't sleep afterwards
Mornings are ok, but certainly not weekdays, too busy, or Sundays, too busy, Saturdays see above.

Special occasions:
Anniversery - Not since I can remember Usually just fight
My Birthday - not in ten or more years to much effort for the cake
Her birthday - best present I can give is not to suggest anything!

Her idea of a perfect romantic evening (expressed repeatedly)
1) Romantic dinner at a nice resturant
2) Retire to nice hotel room suitably prepared beforehand by me with candles flowers etc
3) I provide her with her favorite novel
4) Leave her in hotel room for the night.

Dance, she dispises me for who I am. No longer make a good living, lost a lot of confidence from the job & financial stuff, so on and so forth. Of course she hates the porn, equal to an affair in her eyes.
Understand, after four years of chemo etc with our son, we are both drained emotionally. This has lowered the water in our relationship and we now see all the rocks that were hidden.