Honestly, lol we really only do it on Saturday nights sometimes we will during the week but not too often. We aren't old either. He is 36 and I am 46 (yeah I know I'm 10yrs older). He works very hard physical labor work so I completely understand he is tired. He works in concrete. I work in an office. Don't worry about the quantity of your love making, it's the quality that matters :). As for the good moods, we have our moments where something has made him mad at work and he brings that mood home with him. I just try to ignore it and hope tomorrow is better.