I don't believe that doing what is right, nor living for God, is as antonymous with having fun as it may be cracked up to be. Besides, so many Christians partake in activities that are not esteemed to the Lord that it would be hypocritical for many to put you down for doing likewise. In any case, remember that God knows the heart better than anyone else; you can do the "right thing" with some enmity towards it. That may be spiritual warfare, or it may be you, but it's something just about everyone goes through. Choosing what you believe to be good, right, moral, ethical, when you want to do the opposite: that's character.