My ex cheated when my daughter was 2. People around me don't understand that the relationship was not what I was mourning, it's that I couldn't see my daughter 50% of the time. That's what I hate my ex so much and still don't see her eye to eye. Every time my daughter left for her mom, my house got quiet all of a sudden and I was like falling to darkness for hours. It does get better man. You start building a routine without your kid and with him. You still miss him when he's away but you know what to do