You are trying to be faithful after one month? I would break up with the person and get yourself together and figure out the issues of why after only 1 month - when most people still have the butterflies in their stomach - you are looking for it somewhere else.
sxy - there are certain things you "try" to do, and there are certain things you "decide" to do.
Until you actually decide to be faithful, rather than just pretending you might be faithful if it's easy, you won't have a successful relationship.
I was watching a show on Discovery Health this weekend on sex addicts. Being unfaithful could be a symptom of sex addiction. It also said many children that grow up in unsafe homes and with little or no affection turn to sex addiction to replace the love they were denied.
So the question would be why are you unfaithful? I would think that answer will give you insight into what you need to do to become faithful.
no one can tell you what to do. when you decide to stop playing around, whether it be b/c you've met someone you really want/value or b/c you get sick, too old, or just worn out with it, you will be faithful