...so I am a "slack" mom?

No way would i say that you are a slacker mom. You are a mom who enjoys fresh air, and there is nothing wrong with that. If you were doing it all weekend long every weekend then we might have another story, but you need the alone time with your hunny. Too many people after kids, no longer remember who they are married to. Way to go... We do the same thing every month, my parents watch our sons at least once a month overnight then my in laws watch the kids once a month during the day so my husband and i can do arrends and the deep cleaning in the house that takes longer than nap time.