Taking to Twitter earlier today, Fran revealed she and her beau have now been dating for a year.
To mark the milestone, the reality star couldn't resist gushing over her other half, telling fans: "A year today with my best friend @JamesBennewith happy anniversary. Love you to bits #friags."
On seeing her post, Diags soon replied: "@Franparman love you too. Happy anniversary #friags ."
The pair first got together shortly after Fran joined the cast of TOWIE last year for the show's eleventh series.
Despite initially dating her boyfriend's best pal Tom Pearce, Fran soon realised it was Diags who had stolen her heart, instead.
Since then - and despite a few minor hiccups along the way - the pair's romance has continued to go from strength to strength.
Pleased for the pair, their TOWIE co-star Lauren Pope made sure to send her congratulations their way.
She tweeted: "@JamesBennewith @Franparman wow time flies! Congrats guys xx."
The couple's anniversary comes after Fran recently celebrated her first TOWIE anniversary too - so double celebrations are in order!
Especially as Fran credited TOWIE for bringing her together with her "soulmate" when reflecting back on her time on the show.
She and Diags recently made their Essex return, heading back onto our screens last month for TOWIE's fourteenth series.
While the couple haven't been given much airtime in recent episodes, they haven't got unnoticed by fans, with many urging show bosses to show more of their fave TOWIE couple.
One user even threatened to quit watching the show! They said: "If Fran and Diags are not on [TOWIE] again tonight and it's just arguing I'll just stop watching it."
Fran has since told followers she is enjoying staying clear of all the drama.
Well, we can't say we don't blame her!
TOWIE continues on Sunday 8 March at 10pm on ITVBe.
For exclusive competitions and amazing prizes visit Reveal's Facebook page NOW!
Need a TOWIE refresher? Here's all that happened last series!