We're still living together and he's been spending a lot of time texting someone and I don't know who...he told me he had mentioned his attraction in therapy and she admitted hers, too. They terminated back in November and he said they'd be together if they could. He gave me a book to read and I realized she'd given it to him (maybe while still in therapy, I don't know), cause there was a boarding pass with her name on it from last year...if I have his phone records and trace her number, would that help?