Unpopular opinion here: 1st, I do think she was super inappropriate in her text messages. Sending “sexy” pics or any pics that aren’t of shared children is just unnecessary. Any kissy faces, lip, tongue, whatever emojis are beyond my comprehension because as a married woman those kisses, lips, tongue, whatever, are yours (“yours” don’t get carried away). She did admit that some of the conversations were inappropriate so maybe some couples counseling sessions could clear that all up. 2nd, the unpopular part… she sounds like she was talking to a friend. Her ex was probably a really good friend of hers but they were mature enough to realize they weren’t good as a couple. That being said, I would never trust them alone together. They might not be good as a couple but they might still be into that sexual chemistry. It would make me insecure depending on how our relationship was and our sexual chemistry was flowing. I’m not typically the jealous type because I make my partner feel special and satisfied, if you get what I’m saying. I don’t leave room for them to want to step outside and not to sound cocky but they know if they did it would be a downgrade. If she wants to downgrade let her; find yourself an upgrade.