How about the wife? How many lovers did she have before she married you? If she has only been with you, do you realize that she might be harboring the same emotions you are harboring?

As I see it, 3 phenomena are present in your situation:

1) the incredibly strong draw of a forbidden fruit
2) rebellion against strict religious upbringing
3) feeling that you were shortchanged, and shortchanged severely

These phenomena are very powerful. But, your masculinity is not low and there is nothing screwed up hormonally. These phenomena are all psychological.

How many perfume bottle does your wife have? How often does she change her haircut/hairdo? Is she playful? Is she a little coquettish/flirtatious with you? Do you feel that she takes you for granted?