hello - first let me say how sorry i am that you find yourself here...however this place is invaluable!
i was where you are back in october and 2 months later things were back on track with my husband and me.
the best advice that i can give you is to take some from here and some of what you know about your wife.
in my case, i stopped pursuing, got a life, no phone calls and most of that BUT, i know my husband has abandonment issues....so every so often, i would let him know that i wanted to work things out and talked about the revelations i was having (let me stress, i kept this to a bare minimum and was not at all whiney about it)
basically, i let him know that i loved him but if i had to move on, i could and be a happy, desirable person while doing it.
every case is different for sure..but i think there are some common threads running through each situation.
begging and pursuing probably would not work for anyone
best of luck to you and i hope things work out


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