Please help me I miss my boy so bad!!!!! 

I need help so bad, my wife works at a prison in Ga and came home everyday treating me like an inmate. I took it for 2 years and had to go, now she has bad mouthed me and says it is all my fault. She hooked up with another officer from the prison 3 days after i left and will not let me see our son-who is my step son and only knows me as daddy. Max is only 3 and doesnt understand why mom will not let him see daddy. God how can she put on such an act to make me love her and be maxs father then control me like that when I said I do, now she rubs it in by being with another man right under my nose and I hurt for my son so bad... I just want to die..I took care of him everyday for 2 years and I miss him so bad it's killing me....