well, Pulsar- this is my final post until you reveal your sex.
I could be wrong, but if we stereotype, i'd say you are a man and choose not to say so, because you feel you will be slagged off by MNs.
Yes, I know there are loads of posts here to from women who's DHs just don't want it often either.
However, the reason your sex is relevant, is because you have talked very often here of seeking sex elsewhere. If you are a man, that means either a prostitute, or a woman who is looking only for sex- no emotional involvement.
Quite where you would find one like that, is hard to say, but it is possible.
If you are a woman, then you will again either have to pay for sex, or find a man willing to provide it free of charge with no emotional ties.
Now this is generalising but MOST women find it hard to have sex with no emotional involvement - I know some will disagree but generally that is accepted. Whereas men can easily have sex without engaging their emotions at all, or just very briefly.
So it IS relevant what sex you are, in light of the advice people offer. If you are a man, you may be able to handle an affair or a shag, or whatever, whereas if you are a woman, you might find it harder- so that route may cause you unhappiness longer term.
I also think that most women wouldn't hide their gender here, as we would not see the point, but you and others may disagree.