do u know his whereabouts on boxing day? is there a chance that the recording was from when they were together? what is ur relationship with her like? more importantly what is ur relationship with ur dp like?
there's obviously a lot more to this but in anycase huge alarm bells should be ringing.
she sounds like a horrible person. Even if it was them, which i doubt, sending that to you is mean and nasty and petty. I would block her, but tell your dp what a horrible nasty woman she is and why you are blocking her.
It was definitely him you could hear them talking before and after. I haven't seen him yet to confront him as I'm away at my parents I don't know how he. Could do this to me it's sick she knew what she was doing I feel as though someone has torn my heart out of my chest.