Just write

When Sebastian was a baby, well more of a baby then he is now, he was being horrid to his poor mama. I know he didn't mean it and truthfully I can't tell you exactly what it was he was doing to make me so upset.
I ended up leaving the house some time in the afternoon before I went crazy. I met one of my best friends in a coffee shop. We sat and talked while both our children napped (Seb was an angel in public) We got onto the subject of our babies, naturally, and I started crying. The day had got to me so bad I was crying in public. I cried about James and I doing everything on our own with no help from our family, I cried about the loss of my freedom and I cried about everyone lying about how they would be around. I was miserable and I really didn't have a valid reason. These things seem so ridiculous to me now.
I felt better after pouring out my heart but I was still sad.
I took Sebastian home and put him in his bed, he looked up at me and laughed! Laughed for the first time! It melted my heart and all the resentment I had felt that morning slipped away. Nothing else matters but my son and no matter how hard some days get, when I hear that sound the sun shines again.