Re: Don't know if I should...
Sounds like your husband is inconsiderate, selfish, and inattentive to your needs. That sucks, especially that he's refusing to do the work to fix himself. It's a tough situation all around.
Are you going to tell him that you messed around town, because if you're going to work to "fix" him, it would be a crying shame if he recovered, became the man of your dreams, found out that you cheated, and kicked you to the curb. He might not be so apathetic when his chemistry is corrected, you know.
You might just want to divorce him and get it over with. If you've had sex with him after you slept around, you might want to let him know to get tested for STDs. That would be a fine parting gift, no?
Oh, and next time, if there is a next time, forgo the wedding vows. They're so old-fashioned.