Its only too much sex if its too much for either one of you. If you both want it 6 times a week, then that is not too much but just right. If one of you wants it only 4 times a week, then 6 becomes to much. Hmmmm.... am I making any sense? LOL.
In other words, talk to each other and find out what your both comfortable with. And continue talking cause it may change to more or less due to stress, health, whatever.
Good communication skills are probably the best thing you can bring to any relationship.

Good luck.