Transcript for Should a Spouse Forgive a Public Betrayal or Move On?
Back now with big questions about marriage and fidelity. Hillary Clinton's close aide huma abedin and former congressman Anthony Weiner announcing their separation following his latest sexting scandal. Their six-year marriage becoming a string of indiscretions and Mara schiavocampo has a closer look at why they are calling it quits. Reporter: This morning, the very public exposure of one couple's most private problems. Former congressman Anthony Weiner once again caught sexting with another woman. The "The New York post" publishing this lewd photo of Weiner with his 5-year-old son beside him. His wife, huma abedin announcing she's had enough. I have made the decision to separate from my husband. When he dragged her child into this, I think that was when her mother-in-law instinct said it's time. I'm done. Reporter: The couple's marriage has been under the microscope since then congressman Weiner accidentally posted a graphic photo on his Twitter account in 2011. I've done things I deeply regret. I apologize to my wife and our families. Reporter: In 2013 the couple re-emerged during Weiner's new York City mayoral bid. The documentary "Weiner" gives a behind-the-scenes look at the couple's private life during the campaign. I don't have any prep. On what? Is the press going to be there. I'll give you some prep. I'll give you some prep. You don't know anything. No, I would say you ago like a Normal campaign candidate's wife. I think Anthony is doing an amazing job. Reporter: As Weiner vied for a second chance he got caught up in another sexting scandal. Abedin remained by his side. I made the decision that it was worth staying in this marriage. Reporter: But now abedin is done playing the role of the supportive wife. For "Good morning America," Mara schiavocampo, ABC news, new York. And joining us now relationship expert Dr. Logan levkoff and Dr. Levkoff, as far as we know there was no physical contact between Weiner and this other woman but betrayal takes many form, yes. Betrayal takes many forms. It's first important to remember that we are not in this relationship. We're not in any of these public relationships, so it's really hard for us to judge. I think it's helpful and certainly kinder if we talk about what we might do differently as opposed to judging someone he. Betrayal can be physical, sexual, emotional and technological. Speaking of the technological aspect, I mean, this is something where this is happening in your spouse's phone, is it ever okay as a spouse or a girlfriend or boyfriend to look at the other's phone if you're suspicious? In a healthy, high functioning relationship we should not be snooping at all. I think there has to be assumed trust built into a relationship. However, in a case where someone has betrayed a partner before, then that trust needs to be earned back so while I don't recommend snooping, a spouse or partner has to be willing to say, look, I want to show what I'm doing and prove to you I'm making a change. I've always been curious. I always felt like if you felt the need to look that perhaps there is another issue you need to address. Relationship, success or failure is not just about one partner but about both and talking about expectations and really communicating. We're not mind readers and sometimes we assume that. I know this has been a public battle for this couple over the last five years and we saw huma stand by her man the two times before. Do you ever have any advice for couples or for women, men to say when enough is enough. Is there a breaking point? It looks like when family members, when children are involved, that's when all bets are off. There are a lot of things we can handle as adults and there are a lot of sacrifices we make for our family but when certain people come into the mix, when our kids are thrown into this, that's usually the time where people cut the cord and say, enough is enough. That makes a lot of sense. Dr. Logan levkoff, thank you so
This transcript has been automatically generated and may not be 100% accurate.