She could be cheating. Since we don't know all the facts, just what we know from this FML, there's many possibilities for why she's acting that way, but we won't know. Your guess is as good as anyone's guess.

#11. That was my first thought she is probably getting it from somewhere else, who just wants foreplay and says ok that's enough now

Nice one.

I think Asexual is when someone doesn't feel amorous or sexually attracted to people, therefore wouldn't want to participate in anything sexual, confidence is usually a different matter.

Sexuality can be a fluid thing for many people. Asexuals are primarily uninterested in sex. They can be heteromantic or homoromantic (which means they are interested in emotional but not physical sides of homosexual or heterosexual relationships.) If you are curious look up the Kinsey Scale. Women can get bored or tired of sex after doing the same thing over and over again. It seems to me that Op is being a boring lover and needs to spice things up, or do more for his wife sexually.

Your spelling is almost as atrocious as your personality.

24 - And yet, he's been married for twelve years. I'd say he's doing something right. Meanwhile, you're a 33 year old posting hate comments on the Internet.

Let's see you get married for 12 years with your attitude!

What a bitch comment. Nicely done, #24.

Outside of this FML that is quite the crappy attitude to hold.

Also, they're married. I understand "dumping" your wife involves quite a protracted and expensive legal procedure.

I have found over the years that an ultimatum like OP received does not come out of the blue. There is a very slim chance she is not already cheating, she still has sexual desires, just no desire for OP to be the one filling them.