Alliecat,
I agree with what everyone has said thus far. I notice that in my relationships they definately go through phases of us wanting to spend tons of time together and then it changes... I also think that the amount of interaction being good or bad depends on the people involved in the relationship. If one person needs lots of freedom and alone time and the other does not then lots of time together might not be good.
I think that you would beable to tell if you were spending too much time together. Maybe you two can talk about it? Ask him to tell you if the time you spend together gets to be too much. This way both of you are being honest in case someone needs some alone time..and you won't drive each other mad.

Jessica