I need help sorting out my parents relationship with me and my wife.?

When you got married did you say the vow, "forsaking all others?" It was put there for a reason. Man up and grow a pair. Unplug the computer or block the e mail stuff, you're supposed to be the man of the family. Joint ownership in a family is going to be a problem, so get out of it fast. Stay the way you are and in six months or less, your now wife is going to find a new mate. Wise up brother.