No, you can't, but "Oooh, pretty please, will you STILL stay married to me?" approach isn't working.
Stand up for yourself. Even your username is "sad", and you need to stop angling for your wife's sympathy and pity, and start angling for her love and RESPECT, instead.
And THAT starts, by respecting YOURSELF enough to stand up for your own boundaries of personal integrity, starting with the concert tickets. Why are you so afraid of her?
