Why it’s hard to reciprocate being nice to a Married man when deep inside, I’m feeling the same?

Sounds like you're having doubts that you chose the right man. It happens. The problem with this is that it doesn't sound like your husband can change into the type of guy you hoped you had married. Marriage is tough & there will be some answers here that will imply that you shouldn't have these thoughts or feelings. It is actually quite a normal thing for men & women both to look at other men/women, whether they're married or not. If you're having other problems with your marriage, you should sit down & have a heart to heart with your husband. Maybe you can go out one night a week & get dressed up. It sounds like you'd love to see your spouse in something other than rugged, outdoor clothes. If you're only in the marriage because you pity your spouse, marriage counseling would be the best answer.