Let's try and pick it apart. Job, S3, new house and responsibilities. Is it an option to take a day off and go bumming? Leave S3 at sitter/daycare, take a YOU day. Even if it is the weekend, take a YOU day. What do you enjoy the most? go do it. Some R&R for you should be a priority, so you don't take it out on someone that doesn't deserve it.
Remember - I'm not that far away, it's a serious offer.
Live your life while you are still living. Riding the trail less traveled.