Sarah says she is convinced her husband of 20 years, Ed, is a liar and a cheater, and she has spent years gathering “evidence” to try to prove that he has been physically unfaithful. Ed admits he has flirted and sexted with other woman and that he had an emotional affair with a co-worker, which he continued even after promising to end things. But he insists the relationship never became physical, and it’s in the past. Will Sarah ever be able to trust Ed, and should she? Dr. Phil sits down with the couple in search of answers and a resolution. Sarah says she believes Ed is a sex addict, and a counselor even diagnosed him as such — is that possible? Plus, one thing Ed and Sarah agree on is that their marital dysfunction is hurting their two teenage sons. Hear from their 18-year-old son — what does he say about the situation? Sarah says she has started the divorce process but isn’t quite ready to pull the trigger. Can this marriage be saved, or is it time to walk away?