TOWIE fans watched as Jessica confronted Ricky about messages he sent to another girl behind her back, before pulling the plug on their long-term relationship.
Since then, it has been claimed the girl in question is X Factor 2013 contestant Lydia Lucy, although neither she or Ricky have confirmed this.
Following last night's episode, Ricky took to Twitter and insisted that he has not "cheated" on Jessica and was merely talking to the unnamed girl in question for "60 seconds".
However, Jessica has now hit back at his claims and suggested their conversation had gone on for an hour.
Venting her anger, Jessica tweeted: "I did what I did for the right reasons. I know the WHOLE truth even though its STILL being tried to played down. Unbelievable. MORE LIES.
"I have every single message in black & white which lasted for more than 60 MINUTES #morelies haven't I been through enough?
I have every single message in black & white which lasted for more than 60 MINUTES #morelies haven't I been through enough— Jessica Wright (@MissJessWright_) October 30, 2014
"Times like this is when people really show their true colours & deflect their guilt & disloyalty onto other people to get out of their own."
Jessica then added: "Clearly I was a fool to expect anything more. We live and learn."
Early on in last night's episode, Jessica was shown crying to her girlfriends. She told them that the messages had been "brought to her attention".
Later, at Jasmin Walia's Diwali party, she then laid in to her boyfriend before declaring that their relationship was over "for good".
The couple have been dating for two years and this isn't the first time they've hit the skids. Last summer, Ricky admitted that he had cheated on Jessica in the first few weeks of their relationship but, after a break-up, they soon rekindled.
Reveal has contacted Ricky and Lydia Lucy's reps about the message claims. A TOWIE spokesperson has meanwhile confirmed that Ricky exchanged "flirtatious" messages with another girl but did not exchange numbers with her.