I concur with the recommendation to 'take some time' away from the relationships.. and basically for the same reasons. It would appear that you are getting a lot of your INTIMACY needs being met with your 'female friend' rather then your girlfriend. Most people would consider this 'a betrayal'.. and at the very least is indicative of 'a problem' with either 'trust', intimacy, or communication. In the future, the safest way to get your intimacy needs met outside of your relationship with your girlfriend would be to communicate (be intimate) with a same sex friend. (obviously not sexual)... The problem with getting your intimacy needs mets outside of your 'committed' relationships is that you end up 'feeling closer', better understood, etc. etc. by the person you are intimate with rather then your spouse, girlfriend etc. NOT GOOD.. Also, many times, these 'platonic' friendships turn sexual etc. Just the fact that you are right not KEEPING THIS A SECRET should be a sure sign of a current problem within your current relationsip. I suggest you "Heed your own message to yourself' (I need to keep this secret from my girlfriend) that there is 'something not right'.. hence take some time to figure out 'what the problem is'.. I predict the problem IS NOT with your girlfriend, but with you.. Just food for thought!!!!