Can You Relate to a Single Mom?

It's occurred to me many times that the challenges I go through as a single parent are challenges that many other parents feel that are married.  For one reason or another, many parents feel alone when it comes to raising their children.  Maybe a spouse is working a lot, sick, or unavailable for whatever reason.  When I tell some of my friends that my kids are gone for the weekend they look at me with envious, almost angry eyes with a hint of jealousy.  Sometimes I think there are married single moms out there that are more alone than me.  Is this you?