Have you checked into the guitar lessons, golf, and bowling yet? Those sound like great ways to meet people and get your mind off what your W is thinking.
If your C is suggesting ways to show your wife how it'll be IF she is a single mom, responsible for the house (lawn and pool!) and kids, then maybe she needs to find a solution for the broken lawn care equipment on her own?
If it'd be a 180 NOT to do it for her, maybe that is an option you could think about. She may get mad, but she may respect you for standing up for yourself when you tell her that feeding the pets was really all you had time for with all the plans you made while the kids were gone.