Pull You In by Jessica Gadziala

It was always supposed to be her little secret.
That she got lonely and desperate enough to call him on his phone sex line.
It was wrong, she knew, to keep calling, knowing who he was, but having him in the dark about who he was talking to.
She always planned to stop.
After the next call.
When their boss gets wind of what is going on, she hatches a plan. Convince them they have to attend a work retreat, then trap them in the woods together in the hopes that they work things out.
But nothing is ever that easy when feelings emerge and secrets are exposed…