Warning: Spoilers ahead from Emily in Paris season 4 part 2.
Both parts of Emily in Paris season 4 brought a lot of changes into Emily's life and where the series could go in the future. She begins the season in the midst of a love triangle — or square, if we're being technical — that had blown up in her face. But by the end of the 10 episodes, she's in a relationship with someone totally new and moving to a completely different European city.
In many ways, Emily in Paris has grown and evolved with its excellent fourth season, and that growth has honestly left a few of its characters in the dust. Two specific characters have essentially become plot devices, and that's more obvious than ever in season 4. Unfortunately, Emily in Paris has progressed past the need for Alfie and Camille, who have overstayed their welcome.
Camille received a happy ending in season 4
From day one, Camille was meant to be something of an inescapable frenemy for Emily. She's the on-off girlfriend of Gabriel and also someone Emily's constantly forced to work with at Agence Grateau. Camille conspired (with help from her mother) to keep Gabriel from Emily. There was a pact that wasn't Emily's idea. And then of course the almost-wedding and almost-baby. In a nutshell, Emily's friendship with Camille has been the rockiest of roads.
Personally, Camille was aggravating as a character in season 4, especially in part 2. As real as her pain was at learning she wasn't actually pregnant, keeping that information from Gabriel and watching the situation crack away at his happiness with Emily was hard to watch. It was hard to root for her, too. By the end of season 4, Camille makes her final appearance in episode 9 while signing paperwork with Sylvie at Agence Grateau, where she runs into Emily and shares her exciting news.
Camille has found a new apartment (she didn't say where but definitely not across the hall from Gabriel) that features both an art studio and a room for a nursery. After what she went through with her pregnancy, she realized she wanted to have a baby and become a mother. (She proposed adoption to Gabriel earlier in the season, but he didn't jump at the idea.) She's moving forward on her own, without Gabriel or Sofia, and we couldn't be happier for her.
Realistically, this sounds like a happy ending. A chapter closed. For much of the series, Camille as a supporting character was utilized as a complication for Emily and Gabriel. Now that she's separated from them both (Emily's with Marcello in Rome, Gabriel wants Emily back), where does she fit into the storyline? Would she remain a main character in a potential fifth season? She probably shouldn't be because using Camille solely as a source of conflict has grown stale.
Alfie deserves better than being second pick
And that brings us to Alfie. Yes, he's a fan-favorite character and there's vocal majority of Emily in Paris fans who wholeheartedly believe Emily should have chosen Alfie over Gabriel. (Time will tell where Marcello falls on the spectrum, though he's already earning high praise from this writer.) However, as a character, Alfie deserves a lot better than he's been getting from the series, and it's super telling that his portrayer, Lucien Laviscount, wasn't a series regular for season 4.
It's important to remember that Alfie was introduced as a secondary love interest for Emily. The series from the beginning laid out an endgame for Emily and Gabriel. Sometimes, that endgame can change based on a myriad of factors, but based on the story the series has been telling, the writers have not wavered from getting Emily and Gabriel together. So, it shouldn't come as a shock that Emily didn't choose Alfie and in season 4 part 2, he found love with someone else.
While Alfie's still ingrained in the world of Emily in Paris by working with Antoine and Gabriel on the restaurant, if he's not romantically involved with Emily or another main character, there's really nowhere for him to go. He didn't become a main character in the same way that Mindy, Sylvie, Gabriel, and even Camille are. They each frequently have their own storylines separate from Emily. But Alfie's place in the series has largely been contingent on Emily.
As much of a bummer as it is to admit, and as much as we all love Alfie (and Lucien Laviscount!), it's not fair to keep him around just because we love him. If the character would be serviced the same way in season 5 as he was in season 4, that's just no fun. Don't get it twisted, though! We do need updates from him and his new relationship. We want him to thrive! But if we're keeping it real, he hasn't really been able to do that in Emily's orbit. It's best to set him free.