<human>: Can you give me the gist of the text in a nutshell?

My Gf and i were exchanging sexual texts as well as pictures and other deeply personal things. 

I received a very sexual message that seemed "off" and wrote "?"
this was the response i got:

"hey fobygrassman, this is {gf's coworker}, {gf's boss} got a hold of {gfs} phone and decided to fuck with you lol she knows nothing about it just so you know...he made it all up lol"

i wrote back: "np tell him i'll forward this to human resources and to expect a call from them explaining why he is going through his employee's personal belongings. Also i hope he has friends in the labor dpt. because i know i do"
<bot>: Essentially, my gf's boss broke into her cell phone (easy to guess password) and texted me something sexual that pertained to something me and my gf were actually talking about