Sad and lonely mama

Spend way too much time thinking about my lying, cheating ass ex/baby’s father. I wish i could just wake up and be over him. I cry all the time. Back n forth between angry and hurt because he’s lied so much but also missing the happy times. Even at work i can’t focus. He’s always on my mind. I try to be happy so the stress won’t hurt my baby but i can’t control these emotions and i hate it.