It is ok to look, just don't act on it! If your mind is wandering and you are looking at other guys, then perhaps there is something missing from your current relaitonship. It is normal to check out other guys that you are physically attracted to; especially during the beginning stages of the relationship when you are not completely secure with how you feel about one another. The grass is always greener on the other side. It is easy to build up ideal relationships in your imagination with strange guys that you see on the street. However, right now you are in real relationship with a potentially great guy. Give him a chance. If after a little while you still feel like something is missing, then perhaps it is time to explore your options elsewhere. Good luck.