The Walford mum, played by Jo Joyner, runs off the day after hearing that her ex-partner Max (Jake Wood) has been seriously hurt in an accident, the Daily Mail claims.
Yesterday, it was revealed that the cast of the BBC soap had been filming out on location for Tanya's wedding to Greg Jessop (Stefan Booth).
However, news of Max's accident is expected to throw the day into turmoil as Tanya is keen to be at the car salesman's side in his hour of need.
Reports have speculated that Tanya hears about Max's accident after she has already exchanged her vows with Greg, but details of the timeline and what takes place inside the church remain unconfirmed.
Greg was introduced as Tanya's new partner late last year. Since then, Tanya has moved back to the Square with Greg because she wants to be closer to daughters Lauren and Abi.
Max, meanwhile, has a new relationship with Vanessa Gold - played by former Footballers' Wives star Zöe Lucker.