Do these sentences work with the given meanings:
[color=red] 1) He was thinking about the problem of his wife and that man.
He was thinking about the problem of the relationship of his wife and that man.
[color=darkblue]2) He was thinking about the problems of his wife and those men.
He was thinking about the problems which were the relationships of his wife and those men.
[color=darkred]3) He was thinking about the problem of his wife with that man.
He was thinking about the problem of the relationship of his wife and that man.
[color=indigo]4) He was thinking about the problems of his wife with those men.
He was thinking about the problems which were the relationships of his wife and those men.
Gratefully,
Navi.