Before she totally switched over to using her new phone, she seemed be calling her ex-boyfriend a lot (they've remained friends) after I exposed the affair. This is the guy she left me for early in our relationship to "give him another chance." He's a mean alcoholic, and a professional gambler. Always treated her poorly while they were together. Now he's on chat all the time all of a sudden, and she is too (though she blocked me after.) I think it's fairly likely that he's now meeting most of her ENs.