The deli owner shares a birthday with St. Patrick's Day and yesterday, he joined his closest friends for a guys' only dinner at Alec's Restaurant, Bar and Grill in Essex.
TOWIE stars Mario Falcone and James 'Arg' Argent were both there, along with ex-TOWIE favourite Joey Essex.
Afterwards, birthday boy Charlie tweeted to his pals: "Thanks for coming tonight... means a lot."
It's a new year and a new start for Charlie, who shocked TOWIE fans last week by announcing out of the blue that he'd quit the show.
He tweeted: "I won't be taking part anymore. It's time to grow up and move on. Wish everyone the best on the show.
"Stay true to who you are. Today I became me, the real Charlie Sims. And so another chapter begins."
Reps for TOWIE later told us: "We haven't been able to film with Charlie for several days because he hasn't felt comfortable sharing his real life on camera and that is an essential part of being in TOWIE.
"As such we have decided he will no longer be part of the show; we agree that it wouldn't be right for him to continue and wish him well in the future."
As well as quitting TOWIE, it appears Charlie has split from long-time girlfriend Ferne McCann. He hinted at a separation through cryptic tweets, with a source later telling Reveal that Ferne was heartbroken.
"Unfortunately Charlie has given Ferne an ultimatum – it's him or the show," a source tells us. "This came as a huge shock to Ferne who is really upset that he would put her in such a position.
"She loves being part of TOWIE and is an important character who is great for the show. She's very successful off the back of it. The reality is that Charlie has never wanted to live his life on camera. Ferne has promised to support him either way and just wants him to do the same for her.
"Hopefully he will realise he can't dictate her career, it feels unfair to suddenly from nowhere put her in this position. She's hoping he'll realise this and they'll make it up, but right now Ferne is unsure what to do and is just very upset."
Recap TOWIE's last series: