Im in love with the Veterinarian

Met a new veterinarian today.  I don't know what it was about him but I can't stop thinking about him.  I am not happy in my relationship.  I haven't been for years. I stay because it is easy and convenient, but it is sucking the life out of me. 
I didn't notice any anxiety today until the kids came home. Why is it impossible for the after school routine to go normal for once?
Why is it impossible for sperm done #3 to put his son to bed without being a complete ass and making him cry?
Parenting is really hard with multiple kids and little to help. Now youngest is in bed next to me driving me nuts.